Relevant bibliographies by topics / Fibré de

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Fibré de'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Fibré de.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Fibré de"

1

Ducrot, François. "Fibré déterminant et courbes relatives." Bulletin de la Société mathématique de France 118, no. 3 (1990): 311–61. http://dx.doi.org/10.24033/bsmf.2149.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

van Duc, Tong. "Une caractérisation du fibré cotangent." Bulletin of the Australian Mathematical Society 38, no. 3 (December 1988): 465–72. http://dx.doi.org/10.1017/s0004972700027854.

Full text
Abstract:
We prove that the Lie algebra of infinitesimal automorphisms of the cotangent structure on the total space of the cotangent bundle of a manifold is isomorphic to the semi-direct product of the Lie algebra of the vector fields on the manifold by the space of closed 1-forms, the vector fields operating on the forms by Lie derivation. The derivations of this algebra Lie are completely determined and we prove that it characterises the cotangent bundle.
APA, Harvard, Vancouver, ISO, and other styles
3

Colliot-Thélène, Jean-Louis. "Rationalité d’un fibré en coniques." Manuscripta Mathematica 147, no. 3-4 (June 9, 2015): 305–10. http://dx.doi.org/10.1007/s00229-015-0758-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Beauville, Arnaud. "Fibrés de rang 2 sur une courbe, fibré déterminant et fonctions thêta." Bulletin de la Société mathématique de France 116, no. 4 (1988): 431–48. http://dx.doi.org/10.24033/bsmf.2105.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

de la Vega, Esteban Astudillo, Gérard Bernier, and Olivier Plé. "Le BPR fibré sous sollicitation biaxiale." Revue Française de Génie Civil 6, no. 5 (January 2002): 709–22. http://dx.doi.org/10.1080/12795119.2002.9692397.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Tanré, Daniel. "Modèle de Dolbeault et fibré holomorphe." Journal of Pure and Applied Algebra 91, no. 1-3 (January 1994): 333–45. http://dx.doi.org/10.1016/0022-4049(94)90149-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Gancarzewicz, Jacek, and Naureddine Rahmani. "Relèvement horizontal des connexions linéaires au fibré vectoriel associé avec le fibré principal des repères linéaires." Annales Polonici Mathematici 48, no. 3 (1988): 291–95. http://dx.doi.org/10.4064/ap-48-3-291-295.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Manivel, Laurent. "Sur la cohomologie des fibrés associés au fibré quotient universel sur la grassmannienne." Bulletin de la Société mathématique de France 118, no. 1 (1990): 67–84. http://dx.doi.org/10.24033/bsmf.2136.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Beauville, Arnaud. "Fibrés de rang deux sur une courbe, fibré déterminant et fonctions thêta. II." Bulletin de la Société mathématique de France 119, no. 3 (1991): 259–91. http://dx.doi.org/10.24033/bsmf.2167.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Bossoto, Basile Guy Richard. "Feuilletage canonique sur le fibré de Weil." Colloquium Mathematicum 121, no. 1 (2010): 17–23. http://dx.doi.org/10.4064/cm121-1-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Fibré de"

1

Bahtiti, Mohamed. "Fibrés vectoriels algébriques de petit rang sur la variété projective P^n." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066076/document.

Full text
Abstract:
1- Généralisation des fibrés instantons spéciaux sur P^2n+1 qui est appelée les fibrés (b+1)-instantons pondérés sur P^2n+1. On a étudié la stabilité de ces fibrés dans le cas où b=0. On a étudié la déformation de fibrés de Steiner pondérés sur P^2n+1. 2- Généralisation des fibrés de Tango sur P^n qui est appelée les fibrés de Tango pondérés sur P^n. On a étudié la stabilité de ces fibrés vectoriels. On a étudié la déformation de ces fibrés vectoriels. 3- Construction de fibrés vectoriels de rang 3 sur P^4. On a étudié la condition pour avoir des fibrés vectoriels qui ne sont pas isomorphes à une somme directe de trois fibrés en droites
1 - Generalization of the special instanton bundles on P^2n+1 which is called the (b+1)-weighted instanton bundles on P^2n+1. The stability of these vector bundles was studied in the case b=0. We studied the deformation of weighted Steiner bundles on P^2n+1. 2 - Generalization of the Tango bundles on P^n which is called the weighted Tango bundles on P^n. The stability of these vector bundles has been studied. The deformation of these vector bundles has been studied. 3 - Construction of vector bundles of rank 3 on P^4. We have studied the condition to have vector bundles that do not isomorphic to a direct sum of three line bundles
APA, Harvard, Vancouver, ISO, and other styles
2

Brotbek, Damian. "Variétés projective à fibré cotangent ample." Phd thesis, Université Rennes 1, 2011. http://tel.archives-ouvertes.fr/tel-00677065.

Full text
Abstract:
Nous étudions différentes propriétés d'hyperbolicité pour les variétés intersection complète. Étant donnée une variété intersection complète lisse X ⊂ M dans une variété projective complexe lisse, nous démontrons que si k est plus grand que dim X/ codimM X et si le multidegré de X est suffisamment grand alors il existe sur X des équations différentielles de jets d'ordre k et de degré m pour m suffisamment grand. Ensuite nous étudions une conjecture de O. Debarre : si X ⊂ P^N est l'intersection d'au moins N/2 hypersurfaces génériques de degré suffisamment grand, alors le fibré cotangent de X est ample. Nous donnons différents résultats partiels en direction de cette conjecture. Nous démontrons que si X vérifie les hypothèses de la conjecture alors X est hyperbolique et le fibré cotangent de X est numériquement positif, gros, et ample en dehors d'un lieu de codimension au moins 2. Nous donnons ensuite une stratégie pour calculer explicitement des formes différentielles symétriques sur des variétés intersection complète particulières. Enfin, nous démontrons un théorème d'annulation pour la cohomologie des fibrés de différentielles de jets de Green-Griffiths, généralisant ainsi un théorème de Schneider et un théorème de Diverio. Pour finir, nous étudions la cohomologie des fibrés en droites sur l'hypersurface universelle des diviseurs dans P^1.
APA, Harvard, Vancouver, ISO, and other styles
3

Brotbek, Damian. "Variétés projectives à fibré cotangent ample." Rennes 1, 2011. https://tel.archives-ouvertes.fr/tel-00677065.

Full text
Abstract:
Nous étudions différentes propriétés d’hyperbolicité pour les variétés intersection complète. Etant donnée une variété intersection complète lisse X ⊂ M dans une variété projective complexe lisse, nous démontrons que si k ≥ dim X/ codimM X et si le multidegré de X est suffisamment grand alors il existe sur X des équations différentielles de jets d’ordre k et de degré m pour m suffisamment grand. Ensuite nous étudions une conjecture de O. Debarre : si X ⊂ PN est l’intersection d’au moins N/2 hypersurfaces génériques de degré suffisamment grand, alors le fibré cotangent de X est ample. Nous donnons différents résultats partiels en direction de cette conjecture. Nous démontrons que si X vérifie les hypothèses de la conjecture alors X est hyperbolique et le fibré cotangent de X est numériquement positif, gros, et ample en dehors d’un lieu de codimension au moins 2. Nous donnons ensuite une stratégie pour calculer explicitement des formes différentielles symétriques sur des variétés intersection complète particulières. Enfin, nous démontrons un théorème d’annulation pour la cohomologie des fibrés de différentielles de jets de Green-Griffiths, généralisant ainsi un théorème de Schneider et un théorème de Diverio. Pour finir, nous étudions la cohomologie des fibrés en droites sur l’hypersurface universelle des diviseurs dans P1
We study different hyperbolicity related problems for complete intersection varieties. Given a smooth complete intersection variety X ⊂ M in a smooth complex projective variety M, we prove that if k ≥ dimX/codimM X and if the multidegree of X is sufficiently big then there exists invariant jet differential equations on X of order k and degree m for m big enough. Then we study a conjecture of O. Debarre: if X ⊂ PN is the intersection of at least N/2 generic hypersurfaces of sufficiently high degree, then the cotangent bundle of X is ample. We give different results towards this conjecture. We prove that if X satisfies the hypothesis of the conjecture, then X is hyperbolic and the cotangent bundle of X is numerically positive, big, and ample modulo a subset of codimension at least 2. We also give a strategy to compute explicitly symmetric differential forms on particular complete intersection varieties. Then, we prove a vanishing theorem for the cohomology of the Green-Griffiths jet differential bundles, generalizing a result of Schneider and a result of Diverio. Finally, we study the cohomology of line bundles on the universal hypersurface of divisors in P1
APA, Harvard, Vancouver, ISO, and other styles
4

Fahlaoui, Rachid. "Stabilité du fibré tangent des surfaces algébriques." Paris 11, 1989. http://www.theses.fr/1989PA112170.

Full text
Abstract:
Cette thèse a pour sujet la stabilité du fibré tangent des surfaces algébriques. On y étudie les deux notions de stabilité, à savoir, la stabilité au sens de Mumford-Takemoto et la T­stabilité (ou stabilité au sens de Bogomolov). Pour les surfaces à fibré canonique (resp anti-canonique) positif, l'existence d'une métrique de Kähler-Einstein implique la semi­stabilité du fibré tangent par rapport à la classe canonique (resp anti-canonique). Si K est positif, une telle métrique existe, ce qui implique la K-semi-stabilité du fibré tangent. Ceci nous conduit à étudier le cas des surfaces à fibré canonique négatif. Nous donnons une démonstration algébrique valable en caractéristique quelconque, de la semi-stabilité du fibré tangent par rapport à la classe anti-canonique. Nous généralisons ce résultat aux surfaces à fibré canonique numériquement négatif vérifiant : si le rang du groupe de Picard de S est 9, alors le système linéaire anti­canonique est à modules variables. Puis nous passons à l'étude de la T-stabilité en distinguant trois cas : les surfaces elliptiques, les surfaces à première classe de Chern nulle et les surfaces géométriquement réglées. On caractérise celles dont le fibré tangent est T-semi-stable et dans les deux derniers cas celles dont le fibré tangent est T-stable
This thesis is concerned with the stability of the tangent bundle of algebraic surfaces. We consider two notions of stability: stability in the sense of Mumford-Takemoto and T-stability (Bogomolov stability). For surfaces with positive canonical (resp. Anti-canonical) bundle, the existence of a Kähler-Einstein metric implies the semi-stability of the tangent bundle with respect to the canonical (resp. Anti-canonical) class. If K is positive, such a metric exists, which implies K-semi-stability. This leads us to study the case of surfaces with negative canonical bundle. We give an algebraic proof, valid in any characteristic, of the semi-stability of the tangent bundle with respect to the canonical class. We generalize this result to surfaces with numerically negative canonical bundle satisfying: if the rank of the Picard group is nine, the anti-canonical linear system contains a singular semi-stable curve. Then we turn to T-stability, distinguishing three cases: elliptic surfaces, surfaces with vanishing first Chern class and geometrically ruled surfaces. We characterize the ones for which the tangent bundle is T-semi-stable and, in the last two cases, the ones for which the tangent bundle is T-stable
APA, Harvard, Vancouver, ISO, and other styles
5

Kraych, Adrien. "Instabilités modulationnelles dans un anneau de recirculation fibré." Thesis, Lille 1, 2020. http://www.theses.fr/2020LIL1R038.

Full text
Abstract:
Ces travaux de thèse portent sur l’instabilité modulationnelle dans un anneau de recirculation fibré. L’instabilité modulationnelle (appelée instabilité de Benjamin-Feir en hydrodynamique) est responsable de l’amplification exponentielle de faibles perturbations d’une onde plane, ce qui conduit à la déstabilisation de celle-ci et à l’apparition d’intenses structures cohérentes localisées dans l’espace et dans le temps. Les dynamiques spatio-temporelles, riches et complexes, issues de ce mécanisme sont la source d’un vif intérêt dans plusieurs champs de la physique où l’équation de Schrödinger non linéaire joue un rôle important. Afin d’étudier ce phénomène, nous avons construit un anneau de recirculation fibré permettant l’observation de l’évolution spatio-temporelle d’une onde lumineuse se propageant dans une fibre optique. Les dynamiques spatio-temporelles issues de l’instabilité modulationnelle diffèrent selon la nature de la perturbation qui déstabilise l’onde plane. Nous avons utilisé l’anneau de recirculation afin d’étudier la dynamique de deux types de perturbations : locale et aléatoire. Dans le cas de la perturbation locale, nous avons mis en évidence, pour la première fois, l’émergence de structures non linéaires oscillantes prédite dans le cadre de théories mathématiques. Dans le cas d’une perturbation aléatoire, nos travaux entrent dans le champ de la turbulence intégrable. Nous avons pu observer des dynamiques spatio-temporelles jusque là uniquement révélées par des simulations numériques et confronter les propriétés statistiques de nos résultats expérimentaux aux simulations numériques de l’équation de Schrödinger non linéaire
This thesis work deals with the modulation instability in a recirculating fiber loop. Modulational instability (called Benjamin-Feir instability in hydrodynamics) is responsible for the exponential amplification of weak perturbations of a plane wave, which leads to the plane wave destabilization and the emergence of intense coherent structures localized in space and time. The rich and complex spatio-temporal dynamic resulting from this mechanism is the source of important interest in several fields of physics where the nonlinear Schrödinger equation plays an important role. In order to study this phenomenon, we set up a recirculating fiber loop allowing us to measure the spatio-temporal evolution of a light wave propagating in an optical fiber. The spatio-temporal dynamics resulting from the modulation instability differ according to the nature of the perturbation which destabilizes the plane wave. We have used the recirculation fiber loop to study the dynamics of two types of perturbations: local and stochastic. In the case of local perturbation, we have demonstrated, for the first time, the emergence of oscillating nonlinear structures predicted within the framework of certain mathematical theories. In the case of a random perturbation, our work falls within the field of integrable turbulence. We were able to observe spatio-temporal dynamics until then only revealed by numerical simulations and to confront the statistical properties of our experimental results with numerical simulations of the nonlinear Schrödinger equation
APA, Harvard, Vancouver, ISO, and other styles
6

Hazera, Christophe. "NOPCPA ultracourt pompé par CPA fibré haute cadence." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0094/document.

Full text
Abstract:
Ces dernières années, le développement des lasers femtosecondes s’est massivement orienté vers des sources à fortepuissance moyenne pour des applications autant scientifiques - par exemple la génération d’impulsions XUV - qu’industrielles. Cettethèse a consisté à développer une source laser permettant d’amplifier des impulsions ultra-brèves à très haute cadence par un laserà fibre avec d’un côté le développement d’un laser de pompe femtoseconde fibré (<600fs) à haute cadence (100kHz), et de fortepuissance (50W) et de l’autre des amplificateurs paramétriques optiques ultrabrefs (<10fs) pompés par cette même source. Pour cela,au sein d’une architecture à dérive de fréquence de fort étirement (2ns), nous avons exploité les propriétés des fibres photoniques à trèsgros coeur dopé à l’Ytterbium qui, pour approcher des énergies proches de 1mJ, nécessitent d’effectuer des études d’endommagement etde préparation des fibres. Nous avons alors pu démontrer une puissance maximale de 90W mais d’excellents résultats ont été établis dansun régime stable et robuste pour lequel ce laser délivre une puissance de 60W avec des impulsions de durées inférieures à 400fs. Aprèsdoublage en fréquence, ce laser a permis alors d’amplifier en deux étages dans des cristaux de BBO des bandes spectrales supérieuresà 300nm centrées autour de 800 nm avec une énergie par impulsion de 19[mu] J (1.9W). Avec un système d’étirement et de compressionbasé sur la combinaison de lames de silice et de miroirs à dérive de fréquence, ces impulsions ont pu atteindre une durée finale de 9.7fs.Ainsi, ces deux sources permettent d’ouvrir la voie à de vastes champs d’investigation en physique moléculaire et atomique
In recent years, the development of femtosecond lasers has been heavily oriented towards high average power sources forboth scientific experiments - such as XUV pulses generation - as well as for industrial applications. This work has been devoted to developa laser source able to amplify ultra-short pulses at a very high repetition rate. In one hand, we develop a high average power (50W)pump laser based on a Fiber Chirped Pulse Amplification (FCPA) technology delivering 400 fs pulses at a high repetition rate (100kHz).In the other hand, a multistage ultrafast optical parametric amplifiers (<10fs) pumped by this source has been then implemented. Toachieve this, we took the benefits of the Ytterbium-doped large-core photonics fibre’s properties in order to approach energies closeto 1mJ. Even in a highly stretched chirped pulse architecture (2ns), using this kind of technology, required to perform studies overdamage and preparation processes of fibers. Thereby, we demonstrated a maximum output power of 90W, but excellent results havebeen obtained in a stable and robust regime in which this laser delivers 60W with pulse durations shorter than 400fs. After frequencydoubling, this laser was sent as a pump into a two-stages - non collinear parametric amplifier made with BBO crystals and a spectrumdelivered a by a CEP-Stable-6fs Ti :sa oscillator has been amplified around 800nm over a spectral bandwidth larger than 300nm witha pulse energy of 19[mu] J (1.9W). By using a stretching and compression scheme based on the combination of silica wedges and chirpedmirrors, the final pulses have been then recompressed down to 9.7fs. These laser systems can be now used to pave the way for vast fieldsof investigation in molecular and atomic physics
APA, Harvard, Vancouver, ISO, and other styles
7

Benaissa, Imene. "Béton de sable fibré projeté pour panneau 3D." Thesis, Cergy-Pontoise, 2015. http://www.theses.fr/2015CERG0782/document.

Full text
Abstract:
Les travaux de recherche entrepris dans le cadre de cette thèse sont destinés à permettre de démontrer que dans la technique de projection, le béton de sable fibré peut remplacer le béton ordinaire habituellement utilisé.La technique de projection du béton est notamment utilisée dans les travaux de soutènement et de tunnels, la stabilisation des pentes mais aussi dans la conception des panneaux 3D.Le béton utilisé, à ce jour, dans la technique du béton projeté dans la conception des panneaux 3D est à base de gravillons 3/8 mm. Cependant, l'inconvénient avec ce mélange, c'est les pertes par rebond du matériau et de fibres qui sont importantes (jusqu'à 50%), d'où un impact économique défavorable et une influence négative sur les propriétés mécaniques du matériau en place sur le support.Le béton de sable composé d'un faible dosage en ciment, sable et une grande quantité de fines calcaires semble tout à fait indiqué pour pallier ce problème, étant donné les avantages que procurent ses finesse, cohésion, fluidité et homogénéité. Dans le cadre de cette étude, les performances du béton de sable projeté (BSP) ont été comparées à celles du béton ordinaire projeté (BOP). Pour le retrait, le comportement a aussi été confronté à celui du béton vibré. Les paramètres de comparaison ont concerné l'état frais (avant, pendant et après projection) et l'état durci, avec une attention particulière portée aux taux de rebond des matériaux, aux résistances mécaniques et aux retraits (endogène et de dessiccation).Les résultats de nos investigations ont mis en évidence un certain nombre d'avantages du BSP par rapport au BOP. A cet effet, notons la réduction des pertes par ricochet des matériaux (béton et fibres) de moitié, avec des épaisseurs de couches de béton projeté de 9 cm contre 6 cm pour le BOP. L'autre point positif, c'est la qualité du fini de surface. Du point de vue de la résistance à la compression, le BSP présente une amplitude plus importante au jeune âge, mais équivalente à long terme. Le retrait endogène du BSP est similaire à ceux des BOP et des bétons vibrés (BV), aussi bien en amplitude qu'en cinétique. Quant au retrait de dessiccation, le BSP manifeste une déformation de l'ordre de 10% plus élevée que celle du BOP. Alors que par rapport au BV, la magnitude de la déformation du BSP est plus petite que celle du BV, et ce en dépit d'une perte d'eau par évaporation plus importante. Par conséquent, et en opposition à la majorité des résultats de la littérature, un perte de poids plus importante par dessiccation, n'implique pas systématiquement une déformation de retrait plus importante. L'autre résultat inattendu est que la structure monomodale de type « méso » du BSP est affectée par une cinétique de séchage plus rapide que la structure bimodale de type « macro » et « méso » du BV.Par ailleurs, l'ajout de 50 kg/m3 de fibres métalliques au BSP réduit le retrait de dessiccation de 16 %, alors que leur influence semble ne jouer aucun effet sur la cinétique ou la magnitude de la déformation du BOP, du moins dans les proportions du dosage utilisé.La proportion de mésopores semble un facteur décisif dans le comportement des retraits de dessiccation des bétons. Dans ce contexte, une explication est fournie pour mettre en relief les raisons du retrait moins important du BSP par rapport au BV, malgré une perte d'eau par séchage plus importante et un volume de pâte plus important
This paper presents test results of mechanical properties of fibre reinforced sand-concrete (BSP) formulated to be used in the sprayed wet-mix process, as a substitution to fibre reinforced concrete (BOP) sprayed by dry-mix process. This process of application of concrete is suitable for diverse applications such underground support and slope stabilization. In BOP, formulated with aggregates up to 8 mm, both material and fibre rebounds are high (50 %); this results in economic implications, and affects the performances of the mixture negatively.BSP formulated with low dosage of cement, sand and high content of limestone filler, but without coarse aggregate; seems to be indicated to alleviate most of these problems, because of its fineness, high cohesiveness, high fluidity and better homogeneity. BSP was investigated and compared with BOP, on the basis of fresh and hardened properties with special emphasis on rebound, compressive strength and drying shrinkage. Results of investigations showed many advantages of this new mixture (BSP) when compared to BOP: reduction of material and fibre rebounds by approximately 50%, relatively substantially thicker layers (9 cm vs 6 cm), good finishing surface, higher early age compressive strength, and long term drying shrinkage close to that of BOP.Comparison of the results shows that the endogenous shrinkage of BOP, BSP and vibrated concrete (BV) is similar.On the other hand, the present study showed that a low amount of steel fibre (50 Kg/m3)reduces the drying shrinkage of BSP by approximately 16%.While, in the case of BOP, the influence is not significant.The aim of this study is to bring some answers to the questions about the delayed deformation of the shooting sand-concrete [BSP], which is made of aggregates up 5 mm.Drying shrinkage results, revealed that drying shrinkage of BSP is higher than that of BV in the short term. In the long term, it becomes lower than that of BV. However, the BSP loses more water during the period of shrinkage measurements than BV. Furthermore, pore size distribution shows that the mesoporous structure of BSP lost more water than the bimodal structure of BV, which includes macropores and mesopores. These particular porometric structures of BSP and BV are the main factor behind the difference of the drying shrinkage behaviour of the two mixtures.This is an interesting and unexpected result, which is not in accordance with the commonly accepted relationship between shrinkage and weight change of samples, and between moisture loss and porometric structure. This work provides an explanation for this phenomenon by taking into account the kinetics of drying and the porometry of the concrete
APA, Harvard, Vancouver, ISO, and other styles
8

Nsanzamahoro, Pierre Claver. "Métrique sur le fibré unitaire tangent au plan hyperbolique." Mémoire, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9469.

Full text
Abstract:
RÉSUMÉ: Toute variété différentiable $M$ admet une métrique dite métrique riemannienne.\\ En définissant $\mathbb{H}=\lbrace z\in\mathbb{C}: Im(z)>0\rbrace$, on peut munir de $\mathbb{H}$ d'une métrique riemannienne $ds^{2}=\frac{dzd\bar{z}}{(Im(z))^{2}}=\frac{dx^{2}+dy^{2}}{y^{2}}$.\\ Muni de cette métrique, $\mathbb{H}$ est une variété riemannienne à la quelle on associe le fibré tangent, $T\mathbb{H}$ ainsi que le fibré unitaire tangent, $T^{1}\mathbb{H}$. Les éléments de $T^{1}\mathbb{H}$ peuvent être exprimés, de façon bijective, en termes des éléments du groupe PSL(2,$\mathbb{R}$) dont l'action sur $T^{1}\mathbb{H}$ est transitive et libre.\\ La métrique définie sur $M$ (en particulier sur $M=\mathbb{H}$) permet de définir sur $TM$ (en particulier sur $T^{1}\mathbb{H}$) une métrique connue sous le nom de métrique de Sasaki.
APA, Harvard, Vancouver, ISO, and other styles
9

Jean, Florence. "Etude et développement d' un microspectro-imageur confocal fibré." Paris 6, 2005. http://www.theses.fr/2005PA066213.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Daniel, Laurent. "Comportement de poutres en béton à hautes performances fibré sous sollicitations cycliques." Nantes, 2001. http://www.theses.fr/2001NANTA002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Fibré de"

1

Crabb, M. C. Fibrewise homotopy theory. London: Springer, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Tereşcenco, Maria. Fibre textile: Manual. Chişinău, Republica Moldova: Universitatea Liberă Internaţională din Moldova, Fac. Informatică şi Inginerie, Catedra Design, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Selle, Giovanni. Fibre. Italy: Il Ceppo, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Husemöller, Dale. Fibre bundles. 3rd ed. New York: Springer-Verlag, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bonassi, Fernando. Fibra ótica. São Paulo: M. Ohno Editor, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Carty, Peter. Fibre properties. 2nd ed. Gosforth: Formword, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Gurr, M. I. Dietary fibre. Washington, D.C: ILSI Press, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Maidana, Roberto O. G. Fibra íntima. Buenos Aires: De Los Cuatro Vientos, 2003.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Husemoller, Dale. Fibre Bundles. New York, NY: Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4757-2261-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Carty, Peter. Fibre properties. 2nd ed. Newcastle upon Tyne: Formword, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Fibré de"

1

Thomason, R. W. "Les K-Groupes d’un Fibré Projectif." In Algebraic K-Theory and Algebraic Topology, 243–48. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-0695-7_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Serre, Jean-Pierre. "Modules projectifs et espaces fibrés à fibre vectorielle." In Springer Collected Works in Mathematics, 531–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-39816-2_39.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Leech, C. M. "Fibre Geometry and Fibre Mechanics." In Solid Mechanics and Its Applications, 5–36. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7841-2_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Allain, Daniel. "Genetics of fibre and fur production in rabbits." In The genetics and genomics of the rabbit, 104–19. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781780643342.0007.

Full text
Abstract:
Abstract This chapter aims to present the genetics of fibre and fur production in the rabbit. It focuses first on general biology of hair covering and hair development of the rabbit. A clear understanding of the biological basis of the coat is essential for a better understanding of the genetic basis of fibre and fur production. It then examines the genetic basis of hair growth pattern and coat composition for fibre and fur production. Selection of rabbit on coat colour, a component of fur production, will be dealt with very briefly. Genetics and molecular genetics of coat colour is the subject of Chapter 6 of this book.
APA, Harvard, Vancouver, ISO, and other styles
5

Mohamed, H., D. W. Bao, and R. Snooks. "Super Composite: Carbon Fibre Infused 3D Printed Tectonics." In Proceedings of the 2020 DigitalFUTURES, 297–308. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4400-6_28.

Full text
Abstract:
AbstractThis research posits an innovative process of embedding carbon fibre as the primary structure within large-scale polymer 3D printed intricate architectural forms. The design and technical implications of this research are explored and demonstrated through two proto-architectural projects, Cloud Affects and Unclear Cloud, developed by the RMIT Architecture Snooks Research Lab. These projects are designed through a tectonic approach that we describe as a super composite – an approach that creates a compression of tectonics through algorithmic self-organisation and advanced manufacturing. Framed within a critical view of the lineage of polymer 3D printing and high tech fibres in the field of architectural design, the research outlines the limitations of existing robotic processes employed in contemporary carbon fibre fabrication. In response, the paper proposes an approach we describe as Infused Fibre Reinforced Plastic (IFRP) as a novel fabrication method for intricate geometries. This method involves 3D printing of sacrificial formwork conduits within the skin of complex architectural forms that are infused with continuous carbon fibre structural elements. Through detailed observation and critical review of Cloud Affects and Unclear Cloud (Fig. 2), the paper assesses innovations and challenges of this research in areas including printing, detailing, structural analysis and FEA modelling. The paper notes how these techniques have been refined through the iterative design of the two projects, including the development of fibre distribution mapping to optimise the structural performance.
APA, Harvard, Vancouver, ISO, and other styles
6

Sampson, William Wyatt. "Poisson Fibre Processes I: Fibre Phase." In Engineering Materials and Processes, 105–57. London: Springer London, 2009. http://dx.doi.org/10.1007/978-1-84800-991-2_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Zhao, Jiying. "Fibre Channel." In Handbook of Computer Networks, 205–16. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118256107.ch13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Terrill, Louise. "Fibre Drying." In Proceedings of the Fourth European Conference on Mathematics in Industry, 403–7. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-009-0703-4_52.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Ferguson, A. I., M. W. Phillips, D. C. Hanna, and A. C. Tropper. "Fibre Lasers." In Laser Spectroscopy VIII, 422–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-540-47973-4_135.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Plowman, Jeffrey E., and Duane P. Harland. "Fibre Ultrastructure." In Advances in Experimental Medicine and Biology, 3–13. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8195-8_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Fibré de"

1

Balbi, Helga Dolorico, and Célio V. N. De Albuquerque. "Coleta de amostras de RSSI para testes de handoff em cenários com mobilidade utilizando-se testbeds FIBRE." In II Workshop do Testbed FIBRE. Sociedade Brasileira de Computação - SBC, 2017. http://dx.doi.org/10.5753/fibre.2017.3127.

Full text
Abstract:
Uma das causas associadas ao problema da instabilidade de associação em redes IEEE 802.11 infraestruturadas densas é a utilização direta de amostras de RSSI pelos algoritmos de handoff implementados nos dispositivos cliente. Tendo em vista que o RSSI apresenta alta variabilidade no tempo devido a ruídos inseridos no decorrer da propagação do sinal, torna-se interessante a utilização de mecanismos de filtragem destas amostras temporais para que aplicações que baseiam-se nesta métrica, como as de handoff, não tomem decisões equivocadas. Buscando-se facilitar a análise de soluções para o problema da instabilidade, este trabalho objetivou a criação de traces de RSSI utilizando-se os testbeds disponibilizados pelo projeto FIBRE. Como será apresentado, os resultados incluem a geração e disponibilização pública de traces obtidos a partir de diferentes interfaces IEEE 802.11 em cenários com mobilidade. Estes traces poderão ser utilizados futuramente como entrada para simuladores de mecanismos de handoff e também para simuladores de outras aplicações que baseiam-se nesta métrica, como algoritmos de localização.
APA, Harvard, Vancouver, ISO, and other styles
2

Filho, Djalma A. Lima, and José A. Suruagy Monteiro. "Investigação do protótipo IRATI usando testbed FIBRE." In II Workshop do Testbed FIBRE. Sociedade Brasileira de Computação - SBC, 2017. http://dx.doi.org/10.5753/fibre.2017.3128.

Full text
Abstract:
Arquitetura da Internet apresenta limitações que interferem no seu desenvolvimento. RINA é uma proposta clean slate para a Internet do futuro que propõem soluções para resolver as limitações na estrutura da Internet, enquanto que o FIBRE é uma rede de experimentação que permite trabalhar com novas propostas de arquiteturas. Neste contexto, esse artigo descreve um trabalho com finalidade de investigar o controle de acesso na arquitetura RINA utilizando o protótipo do projeto IRATI sobre o ambiente FIBRE utilizando a ilha UFPE. Será abordado experimento realizado que visa avaliar de maneira prática o funcionamento do controle de acesso, além de apresentar soluções propostas pela arquitetura para solucionar as limitações atuais.
APA, Harvard, Vancouver, ISO, and other styles
3

Pedroso, Diego, Bruno Lopes, Cesar Marcondes, and Emerson Barea. "Simulação de Ambientes de Redes Utilizando a Testbed FIBRE - Aplicações na Pesquisa e no Ensino." In III Workshop do Testbed FIBRE. Sociedade Brasileira de Computação - SBC, 2018. http://dx.doi.org/10.5753/fibre.2018.3129.

Full text
Abstract:
As testbeds são plataformas de experimentação para internet que permitem testes, demonstrações e também podem ser utilizadas para fins de ensino. Dentro do contexto do projeto FIBRE foi desenvolvido um protótipo que permite experimentação do plano de dados de uma rede, bem como reprogramação de FPGA. A maioria das testbeds não permitem que o usuário realize experimentos que controlem o plano de dados e ao mesmo tempo permita reprogramação de hardware. Visando preencher essa lacuna, e ao mesmo contribuir com o avanço do estado da arte, este trabalho tem por objetivo propor experimentos utilizando a testbed FIBRE que auxiliem no ensino e em pesquisas, proporcionando que pesquisadores e alunos tenham um ambiente flexível e de fácil provisionamento, permitindo testes, validações e demonstrações.
APA, Harvard, Vancouver, ISO, and other styles
4

Braga, Vinícius Gonçalves, João Paulo Esper, Murillo Silva e. Nunes, Elton Vivot Dias, Sand Luz Corrêa, and Kleber Vieira Cardoso. "Prova de Conceito de Gerenciadores de Infraestruturas Virtualizadas como Serviço Explorando o Sistema de Alocação de Recursos e Experimentação do FIBRE." In III Workshop do Testbed FIBRE. Sociedade Brasileira de Computação - SBC, 2018. http://dx.doi.org/10.5753/fibre.2018.3130.

Full text
Abstract:
Este artigo apresenta uma avaliação da viabilidade de se implantar VIMs sob demanda (VIMs como um serviço) no contexto de fatiamento de redes, onde mais de um VIM pode ser instanciado simultaneamente. Para realizar essa validação, utilizamos o sistema de alocação de recursos e experimentação do FIBRE. Os resultados experimentais mostram que é viável instanciar VIMs sob demanda nestes cenários, mesmo quando lidando com VIMs mais complexos, como o OpenStack.
APA, Harvard, Vancouver, ISO, and other styles
5

Brito, Italo Valcy S., Adriana Viriato Ribeiro, and Leobino N. Sampaio. "Experiências com uso da ferramenta SDN-IPS no testbed FIBRE para práticas de ensino de redes e cibersegurança." In III Workshop do Testbed FIBRE. Sociedade Brasileira de Computação - SBC, 2018. http://dx.doi.org/10.5753/fibre.2018.3131.

Full text
Abstract:
Um desafio no ensino de Redes e Cibersegurança é a conciliação entre teoria e prática. A partir do equilíbrio entre os princípios teóricos e a experimentação tem-se, de fato, métodos acessíveis ao aluno para melhor aquisição do conhecimento. Nesse sentido, o uso de ambientes de testbed, como o FIBRE, para fins de educação enriquece o processo de ensino e aprendizagem, proporcionando experiências que vão além das práticas convencionais em cenários restritos ou emulados. Este artigo apresenta um relato de experiências no uso do FIBRE e da ferramenta SDN-IPS na execução de um curso semi-presencial de redes e segurança. O feedback dos alunos mostra a importância de ações como essa no seu processo de formação.
APA, Harvard, Vancouver, ISO, and other styles
6

Zanela, Eduardo Henrique Rocha, and Cesar Augusto Cavalheiro Marcondes. "Teste de desempenho de Algoritmo de Controle de Congestionamento TCP utilizando testbed FIBRE." In III Workshop do Testbed FIBRE. Sociedade Brasileira de Computação - SBC, 2018. http://dx.doi.org/10.5753/fibre.2018.3132.

Full text
Abstract:
O controle de congestionamento do TCP é fundamental para manter um bom funcionamento e desempenho de uma rede de internet, pois controla a taxa de transmissão realizada pelos emissores, evitando ou reduzindo ocasiões de congestionamento. Apesar de diversos estudos realizarem testes entre diferentes TCP's, não existe um protocolo genérico ideal, mas sim protocolos que funcionam melhor em determinadas situações. Winstein e Balakrishan (2013) apresentaram no SIGCOMM1 um programa capaz de gerar algoritmos de controle de congestionamento para serem executados nos pontos finais da rede, o programa Remy. Os resultados apresentados no artigo, através de testes comparativos realizados pelo programa Network Simulation (NS2), demonstraram um funcionamento bastante superior aos protocolos atuais. Porém para a criação de novos algoritmos com diferentes cenários, o Remy requer um alto custo computacional, e ainda sim é necessário uma grande quantidade de dias para sua execução completa. Para a resolução desta problemática, criar uma versão suavizada do Remy permite minimizar o tempo de processamento e o custo computacional. Buscando facilitar o teste de desempenho e visando um teste em rede real, a utilização de uma testbed FIBRE se encaixa perfeitamente no cenário.
APA, Harvard, Vancouver, ISO, and other styles
7

Valenzuela, Gracieth, and Leonardo Amaral. "Laboratório de Roteamento BGP para Ambiente Educacional no testbed Fibre." In III Workshop do Testbed FIBRE. Sociedade Brasileira de Computação - SBC, 2018. http://dx.doi.org/10.5753/fibre.2018.3758.

Full text
Abstract:
Este artigo visa descrever a implementação de um laboratório educacional de roteamento dinâmico com finalidade de auxiliar os professores das disciplinas de Redes de Computadores a ter um ambiente mais próximo da realidade para demonstração e operação pelos alunos. As ferramentas utilizadas foram a Infraestrutura do testbed FIBRE - uma estrutura educacional composta por 15 locais de testes onde cenários mais complexos podem ser desenvolvidos em ambiente similar ao de produção - e o protocolo de roteamento BGP protocolo mais utilizado para conexões entre Sistemas Autõnomos distintos.
APA, Harvard, Vancouver, ISO, and other styles
8

Dantas, Lucas Cristiano, Everton Cavalcante, and Thais Batista. "Facilitando o Desenvolvimento de Aplicações de Internet das Coisas: Um Estudo Experimental." In Workshop do Testbed FIBRE. Sociedade Brasileira de Computação, 2021. http://dx.doi.org/10.5753/fibre.2021.15767.

Full text
Abstract:
Plataformas para Internet das Coisas (IoT) tem como um dos principais objetivos facilitar o desenvolvimento de aplicações. No entanto, a implantação e configuração dos componentes e serviços providos por tais plataformas para serem utilizados no desenvolvimento de uma determinada aplicação de IoT é, em geral, um processo laborioso. O FIWARE-Lab@RNP é um laboratório virtual Web desenvolvido com o propósito de possibilitar a utilização de recursos da plataforma FIWARE de forma transparente. Utilizando o FIWARE-Lab@RNP, os usuários podem facilmente criar, configurar e gerenciar componentes e serviços da FIWARE, minimizando assim a curva de aprendizado referente a essas tarefas. Este artigo apresenta os resultados de um experimento controlado realizado com usuários com o objetivo de avaliar o potencial do FIWARE-Lab@RNP para reduzir o esforço de desenvolvimento de aplicações e contribuir com uma melhor experiência no uso de plataformas de IoT.
APA, Harvard, Vancouver, ISO, and other styles
9

Oliveira-Jr, Antonio, Ciro Macedo, Gabriel M. F. de Almeida, Leonardo Rodrigues, Marcos Abreu, Sand Correa, and Kleber Cardoso. "Experimentos da Proposta de Integração SOFTWAY4IoT e FIWARE-Lab@RNP para Internet das Coisas (IoT)." In Workshop do Testbed FIBRE. Sociedade Brasileira de Computação, 2021. http://dx.doi.org/10.5753/fibre.2021.15768.

Full text
Abstract:
Espera-se que a quantidade de objetos da Internet das Coisas cresça de forma exponencial, aumentando consequentemente o fluxo de dados trafegados pela rede. Para suportar este aumento, a diversidade de tecnologias e a possível distribuição geográfica destes objetos conectados, é necessário uma infraestrutura apta a gerenciar estas demandas. Este trabalho apresenta os detalhes da implantação e os experimentos de integração do SOFTWAY4IoT realizado junto à infraestrutura computacional (máquinas virtuais) disponibilizada pela RNP e a plataforma FIWARE-Lab@RNP. O caso de uso é lixeiras inteligentes para coleta de dados acerca da quantidade de resíduos orgânicos e monitoramento de níveis de lixo das lixeiras seletivas.
APA, Harvard, Vancouver, ISO, and other styles
10

Coelho, Igor M., and Vitor N. Coelho. "NeoCompiler Eco: experimentação de consenso em blockchain e contratos inteligentes." In Workshop do Testbed FIBRE. Sociedade Brasileira de Computação, 2021. http://dx.doi.org/10.5753/fibre.2021.15770.

Full text
Abstract:
Este artigo apresenta a plataforma NeoCompiler Eco, com foco em desenvolvimento e experimentação para contratos inteligentes, bem como sistemas de consenso para blockchain. O NeoCompiler é um projeto livre iniciado em 2017, já estabelecido online (em produção) e com usuários em escala global. Ele consiste em diversos módulos, dentre eles: suporte a compilação de contratos inteligentes Turing-completos escritos em linguagens populares para o bytecode da blockchain; testes e implantação de contratos em uma rede pública compartilhada temporária e de alcance global; ferramentas didáticas auxiliares para conversões de tipos e blockchain explorer interno para visualização de transações e blocos; chat interativo para dúvidas entre participantes (globais); interação e visualização gráfica do processo de consenso. Dentre as realizações da plataforma, ressaltamos: apoio a disciplinas no tópico de blockchain, realização de hackathons no Brasil, América Latina e mundiais; apoio à rede experimental "Nosso DLT'' e desenvolvimento de algoritmos de consenso inovadores, como o dBFT 2.0 lançado em 2019.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Fibré de"

1

McCloghrie, K. Fibre Channel Management MIB. RFC Editor, May 2005. http://dx.doi.org/10.17487/rfc4044.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Zhang, Lin. High Extinction Ratio In-Fibre Polarisers by Exploiting Tilted Fibre Bragg Grating Structures for Single-Polarisation High-Power Fibre Lasers and Amplifiers. Fort Belvoir, VA: Defense Technical Information Center, November 2009. http://dx.doi.org/10.21236/ada524631.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Weber, R., M. Rajagopal, F. Travostino, M. O'Donnell, C. Monia, and M. Merhar. Fibre Channel (FC) Frame Encapsulation. RFC Editor, December 2003. http://dx.doi.org/10.17487/rfc3643.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

DeSanti, C., H. K. Vivek, K. McCloghrie, and S. Gai. Fibre Channel Zone Server MIB. RFC Editor, August 2007. http://dx.doi.org/10.17487/rfc4936.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

DeSanti, C., V. Gaonkar, H. K. Vivek, K. McCloghrie, and S. Gai. Fibre-Channel Name Server MIB. RFC Editor, April 2006. http://dx.doi.org/10.17487/rfc4438.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

DeSanti, C., K. McCloghrie, S. Kode, and S. Gai. Fibre Channel Routing Information MIB. RFC Editor, September 2006. http://dx.doi.org/10.17487/rfc4625.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Jones, Sid. Fibre Channel Avionics Bus Monitor. Fort Belvoir, VA: Defense Technical Information Center, February 2001. http://dx.doi.org/10.21236/ada389673.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Piggott, Michael R. Mesomechanical Model for Fibre Composites. Fort Belvoir, VA: Defense Technical Information Center, July 1990. http://dx.doi.org/10.21236/ada226792.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

DeSanti, C., H. K. Vivek, K. McCloghrie, and S. Gai. Fibre Channel Fabric Configuration Server MIB. RFC Editor, August 2007. http://dx.doi.org/10.17487/rfc4935.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

DeSanti, C., V. Gaonkar, K. McCloghrie, and S. Gai. Fibre Channel Fabric Address Manager MIB. RFC Editor, March 2006. http://dx.doi.org/10.17487/rfc4439.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Fibré de' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography