Dissertations / Theses on the topic 'Formule de trace'
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Li, Huajie. "Contributions to the relative trace formula of Guo-Jacquet." Thesis, Université de Paris (2019-....), 2020. http://www.theses.fr/2020UNIP7080.
Full textWe establish global and local trace formulae for infinitesimal symmetric spaces of Guo-Jacquet. We also prove several local results concerning the comparison of regular semi-simple terms which are noninvariant weighted orbital integrals. This thesis contains five chapters. In Chapter 1, we recall the motivations and state our main reults. Our work is inspired by a conjecture of Guo-Jacquet, which is an example in the relative Langlands programme, and analytic problems appearing in the relative trace formula approach. In Chapter 2, we establish an infinitesimal variant of Guo-Jacquet trace formula for the case of (GL (2n, D), GL (n, D) ⨉GL (n, D)). It is a kind of Poisson summation formula obtained by an analogue of Arthur’s truncation. We describe regular semi-simple terms as explicit weighted orbital integrals. In Chapter 3, we estabilish a similar formula and have a similar description of regular semi-simple terms for the case of a central simple algebra containing a quadratic extension. Moreover, we state and prove the weighted fundamental lemma thanks to Labesse’s work on the base change for GL(n). In Chapter 4, we establish an infinitesimal invariant local trace formula of Guo-Jacquet over a p-adic field by following works of Waldspurger and Arthur. During the proof, we also obtain an infinitesimal noninvariant local trace formula, Howe’s finiteness for weighted orbital integrals and the representability of the Fourier transform of weighted orbital integrals. In Chapter 5, with the results in previous chapters, we adopt Waldspurger’s strategy on the endoscopic transfer to prove some relations between Fourier transforms of invariant local weighted orbital integrals
Hillairet, Luc. "Contribution d'orbites périodiques diffractives à la formule de trace." Université Joseph Fourier (Grenoble), 2002. https://tel.archives-ouvertes.fr/tel-00001664.
Full textLiu, Bingxiao. "Laplacien hypoelliptique et formule des traces tordue." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS165/document.
Full textIn this thesis, we give an explicit geometric formula for the twisted semisimple orbital integrals associated with the heat kernel on symmetric spaces. For that purpose, we use the method of the hypoelliptic Laplacian developed by Bismut. We show that our results are compatible with classical results in local equivariant index theory. We also use this formula to evaluate the leading term of the asymptotics as d -> + ∞ of the equivariant Ray-Singer analytic torsion associated with a sequence of flat vector bundles Fd on a compact locally symmetric space. We show that the leading term can be evaluated in terms of the W-invariants constructed by Bismut-Ma-Zhang
Ferrari, Axel [Christophe]. "Théorème de l'indice et formule des traces." Aix-Marseille 2, 2007. http://theses.univ-amu.fr.lama.univ-amu.fr/2007AIX22047.pdf.
Full textOur purpose is to obtain a geometric formula as explicit as possible for the L2 index of a Dirac operator over a locally symmetric pace of finite volume, generalizing Arthur’s formula for the Euler-Poincaré caracteristic
Kret, Arno. "Stratification de Newton des variétés de Shimura et formule des traces d’Arthur-Selberg." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112365/document.
Full textWe study the Newton stratification of Shimura varieties of PEL type, at the places of good reduction. We consider the basic stratum of certain simple Shimura varieties of PEL type at a place of good reduction. Under simplifying hypotheses we prove a relation between the l-adic cohomology of this basic stratum and the cohomology of the complex Shimura variety. In particular we obtain explicit formulas for the number of points in the basic stratum over finite fields, in terms of automorphic representations. We obtain our results using the trace formula and truncation of the formula of Kottwitz for the number of points on a Shimura variety over a finite field. We prove, using the trace formula that any Newton stratum of a Shimura variety of PEL-type of type (A) is non-empty at a prime of good reduction. This result is already established by Viehmann-Wedhorn; we give a new proof of this theorem. We consider the basic stratum of Shimura varieties associated to certain unitary groups in cases where this stratum is a finite variety. Then, we prove an equidistribution result for Hecke operators acting on the basic stratum. We relate the rate of convergence to the bounds from the Ramanujan conjecture of certain particular cuspidal automorphic representations on Gl_n. The Ramanujan conjecture turns out to be known for these automorphic representations, and therefore we obtain very sharp estimates on the rate of convergence. We prove that any connected reductive group G over a non-Archimedean local field has a cuspidal representation. Together with Erez Lapid we compute the Jacquet module of a Ladder representation at any standard parabolic subgroup of the general linear group over a non-Archimedean local field
Bouthier, Alexis. "Géométrisation du côté orbital de la formule des traces." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112064.
Full textThis main goal of this work is to construct and study the properties of Hitchin fibration for groups which appears naturally when we try to geometrize the trace formula. We begin by constructing this fibration using the Vinberg’s semigroup. On this semigroup, we show that there exists a characteristic polynomial morphism equipped with a natural section, analog at the Kostant’s one in the case of Lie algebras. We also show that there exists on the base of characteristic polynomials a regular centralizer scheme, which is a smooth commutative group scheme.Then, we are interested in some variant of affine Springer fibers, for which we see that the Vinberg’s semigroup appears naturally to obtain an integrality condition analog to Kazhdan-Lusztig’s one. These affine Springer fibers are local incarnation of Hitchin fibers.In a third time, we go back to the global case and give a modular interpretation of this new Hitchin fibration on which we construct an action of a Picard stack, coming from the regular centralizer.The total space of this fibration, even on the generically regular semisimple locus will be singular and we want to understand his intersection complex. This space can be obtained as the intersection of the Hecke stack with the diagonal of the stack of G-bundles and we show that on a sufficiently big open subset of the Hitchin base, the intersection complex of the Hitchin’s space is the restriction of the corresponding intersection complex on the Hecke stack.Finally, in the last part of this work, we establish a support theorem in the case of a singular total space, generalizing Ngo’s theorem et we show that in the case of Hitchin fibration, the supports that appear are related to the endoscopic strata
Cachia, Vincent. "La formule de Trotter-Kato : approximation des semi-groupes en normes d'opérateur et de trace." Phd thesis, Université de la Méditerranée - Aix-Marseille II, 2001. http://tel.archives-ouvertes.fr/tel-00341769.
Full textDubertrand, Rémy. "Deux applications du chaos quantique : étude des fonctions d'ondes aléatoires via SLE et description de cavités diélectriques." Paris 11, 2008. http://www.theses.fr/2008PA112354.
Full textDuring my thesis we studied two specific problems in quantum chaos. First we confirmed the percolation mod describing the nodal lines of wavefunction of classically chaotic systems. These lines were described via a certain Schrammm Loewner Evolution process and our study agrees with the recent theorem stating that it is linked with the critical percolation. Secondly we generalized results in quantum chaos weil known for closed billiards to open dielectric cavities. We gave general formulas for a slight pertubation of a circular cavity and proposed a generalized trace formula for these systems. We especially gave the first terms of a Weyl expansion in order to count the resonances of a dielectric cavity. These results agree weil with experimental data and numerical simulations. Both these studies show how fundamental and transverse techniques of quantum chaos are for topical problems
Hachami, Saïd. "Périodes hermitiennes des courbes et application à une formule de chowla-selberg." Nancy 1, 1988. http://www.theses.fr/1988NAN10142.
Full textGiraud, Olivier. "Statistiques spectrales des systèmes diffractifs." Paris 11, 2002. http://www.theses.fr/2002PA112081.
Full textWe are interested in the analytical aspects of the spectral statistics of quantum diffractive systems. Dynamical systems have a classical behaviour which ranges from integrable to chaotic or intermediate, and there seems to be a correspondance between this classical behaviour and the quantum properties of the system. This work is a study of the spectral correlation functions of integrable systems perturbed by a singularity: infinitely small scattering center (delta-like potential), singular corner in a billiard, Aharonov-Bohm flux line. It was possible to obtain analytically the expression of the form factor at the origin for some specific systems: rectangular or circular billiard with Aharonov-Bohm flux line, triangular billiards with "Veech property", barrier billiards. The analytical results agree with numerics and support the existence of a statistical behaviour common to all intermediate systems. In order to obtain the whole expansion of the form factor the contribution of diffractive orbits must be taken into account. We use a semiclassical method which allows to resume all contributions of interactions between periodic and diffractive orbits, and obtain the analytical expansion of the form factor for a rectangular billiard with a scattering center. The distribution of the distance between nearest-neighbours is computed analytically for the same system; its asymptotic behaviour demonstrates that such a system shares features with both integrable and chaotic systems, thus verifying the conjecture for intermediate systems
Habsieger, Laurent. "Conjectures de macdonald et q-integrale de selberg-askey." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13080.
Full textWeimann, Martin. "La trace en géométrie projective et torique." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2006. http://tel.archives-ouvertes.fr/tel-00136109.
Full textl'aide du calcul résiduel dans les cadres projectifs et toriques.
Dans la première partie, on obtient une caractérisation algébrique des formes traces sur une hypersurface analytique à l'aide du calcul résiduel élémentaire d'une variable. En conséquence, une version plus forte du théorème d'Abel-inverse de Henkin et Passare est prouvée. On montre que ce théorème est conséquence de la rigidité d'un système différentiel particulier lié à une équation de type ”onde de choc” et on établit le lien avec le théorème de Wood sur l'algébricité d'une famille de germes d'hypersurfaces analytiques. Enfin, on obtient une nouvelle méthode pour calculer la dimension de l'espace des formes abéliennes de degré maximal sur une hypersurface projective.
Dans la seconde partie, on caractérise de manière combinatoire les familles de fibrés en droites permettant de définir une notion intrinsèque de concavité dans une variété torique complète lisse et on étudie les ensembles analytiques dégénérés correspondants. On étend ainsi la notion de trace au cas torique. Courants résidus, résidus toriques et résultants donnent une borne optimale sur le degrés des traces en les différents paramètres. Si la variété torique est projective, on obtient finalement une version torique des théorèmes de Wood et d'Abel-inverse, permettant une description plus précise du support du polynôme construit dans le cas hypersurface.
Bui, Van Binh. "Intégrales de Selberg complexes et p-adiques et identités de Dyson-Macdonald." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2359/.
Full textThis thesis is part of a research program on Conformal field theory and representations of Lie algebra of dollar\frak{sl}_2dollar (real, complex, dollarpdollar-adic, dollarqdollar-derfomed). We study a real, dollarpdollar-adic and dollarqdollar-deformed versions of a triple integral appeared in physics in connection with the Liouville model of the Conformal field theory. These integrals turn out to be connected with the Dyson-Macdonald constant term identities. We also give another approach to compute the complex case by using Bernstein-Reznikov's technique. The main idea is to apply invariant functionals on principal series representations of dollarG=SL(2,\mathbb C)dollar. Finally, one defines a dollarqdollar-deformation of Jacquet-Langlands principal series representations of dollarGL_2(\mathbb R)dollar and prove the uniqueness of an invariant triple functional on them by using method of H. Y. Loke. Alongside, we find out some relations to similar differential equations in [NSU]
Deneufchatel, Matthieu. "Intégrales Itérées en Physique Combinatoire." Paris 13, 2012. http://scbd-sto.univ-paris13.fr/intranet/edgalilee_th_2012_deneufchatel.pdf.
Full textWe present several results linked by the tools and by the underlying structures we use (iterated integrals, shuffle products). In the first part, we are interested in the computation of integrals of Selberg type and in their asymptotics when the number of variables tends to infinity. In the general case, we show that the result can be expressed as a product whose number of factors does not depend on the number of variables (under certain conditions). If the power of the Vandermonde determinant equals 2, the limit of the integral when the number of variables tends to infinity can be computed with operators related to Newton’s interpolation. The second part has two sections which are related to special functions called hyperlogarithms. We start with the question of the linear independence of a family of functions obtained by iterated integrals and give a criterion that links the properties of the whole family to the behavior of the functions obtained by simple integrals. We show how to construct the required fields of germs of analytic functions which play an important role. Several examples allow us to extend the known results. Then we come back to the free algebra and the properties of dual families, our main interest being Schützenberger’s factorisation. We recall some classical results in the partially commutative case ; then we consider the family obtained by dualisation from the Lyndon words. It is not possible to write the factorisation for these dual families but we make precise the nature of the elements of the family obtained by duality. Finally, we present a criterion that gives a condition on the dual families for the factorisation to hold
Yu, Hongjie. "Comptage des systèmes locaux ℓ-adiques sur une courbe." Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCC057/document.
Full textLet X1 be a projective, smooth and geometrically connected curve over Fq with q = pn elements where p is a prime number, and let X be its base change to an algebraic closure of Fq.We give a formula for the number of irreducible ℓ-adic local systems (ℓ ≠ p) with a fixed rank over X fixed by the Frobenius endomorphism.We prove that this number behaves like a Lefschetz fixed point formula for a variety over Fq, which generalises a result of Drinfeld in rank 2 and proves a conjecture of Deligne. To do this, we pass to the automorphic side by Langlands correspondence, then use Arthur’s non-invariant trace formula and link this number to the number of Fq-points of the moduli space of stable Higgs bundles
Bouclet, Jean-Marc. "Distributions spectrales pour des operateurs perturbes." Phd thesis, Université de Nantes, 2000. http://tel.archives-ouvertes.fr/tel-00004025.
Full textShen, Xu. "Filtrations de Hodge-Newton, décomposition cellulaire et cohomologie de certains espaces de modules p-adiques." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00764117.
Full textPanichi, Marie-Noëlle. "Caractérisations du spectre tempéré de GLn(C) / GLn(R)." Paris 7, 2001. http://www.theses.fr/2001PA077230.
Full textDo, Viet Cuong. "Le lemme fondamental métaplectique de Jacquet et Mao." Electronic Thesis or Diss., Université de Lorraine, 2012. http://www.theses.fr/2012LORR0020.
Full textWe prove in the case of positive characteristic a fundamental lemma conjectured by Jacquet and Mao for the metaplectic group. We use the arguments of Bao Châu Ngô for Jacquet-Mao?s fundamental lemma (B.C. Ngo, 1999) and a geometric study of the metaplectic group
Skripka, Anna. "Trace formulae in finite von Neumann algebras." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4740.
Full textThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on October 9, 2007) Vita. Includes bibliographical references.
Dwyer, Jo. "Numerical methods applied to trace and explicit formulae." Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681488.
Full textDemaeyer, Jonathan. "Escape rate theory for noisy dynamical systems." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209440.
Full textIn many circumstances, escape is activated by the presence of noise, which may be of internal or external origin. This is the case for thermally activated escape over a potential energy barrier and, more generally, for noise-induced escape in continuous-time or discrete-time dynamics.
In the weak-noise limit, the escape rate is often observed to decrease exponentially with the inverse of the noise amplitude, a behaviour which is given by the van't Hoff-Arrhenius law of chemical kinetics. In particular, the two important quantities to determine in this case are the exponential dependence (the ``activation energy') and its prefactor.
The purpose of the present thesis is to develop an analytical method to determine these two quantities. We consider in particular one-dimensional continuous and discrete-time systems perturbed by Gaussian white noise and we focus on the escape from the basin of attraction of an attracting fixed point.
In both classes of systems, using path-integral methods, a formula is deduced for the noise-induced escape rate from the attracting fixed point across an unstable fixed point, which forms the boundary of the basin of attraction. The calculation starts from the trace formula for the eigenvalues of the operator ruling the time evolution of the probability density in noisy maps. The escape rate is determined by the loop formed by two heteroclinic orbits connecting back and forth the two fixed points in a two-dimensional auxiliary deterministic dynamical system. The escape rate is obtained, including the expression of the prefactor to van't Hoff-Arrhenius exponential factor./L'échappement des trajectoires est un phénomène omniprésent dans les systèmes dynamiques ouverts et les processus stochastiques. Si l'échappement se produit de façon répétitive pour un ensemble statistique de trajectoires, la population des trajectoires restantes subit souvent une décroissance exponentielle caractérisée par le taux d'échappement. L'inverse du taux d'échappement définit alors la durée de vie de l'état transitoire associé, ce qui représente une propriété intrinsèque du système. Ce paradigme est fondamental pour la théorie de la nucléation et, de manière générale, pour la théorie des taux de transitions en chimie, en physique et en biologie.
Dans de nombreux cas, l'échappement est induit par la présence de bruit, qui peut être d'origine interne ou externe. Ceci concerne en particulier l'échappement activé thermiquement à travers une barrière d'énergie potentielle, et plus généralement, l'échappement dû au bruit dans les systèmes dynamiques à temps continu ou à temps discret.
Dans la limite de faible bruit, on observe souvent une décroissance exponentielle du taux d'échappement en fonction de l'inverse de l'amplitude du bruit, un comportement qui est régi par la loi de van't Hoff-Arrhenius de la cinétique chimique. En particulier, les deux quantités importantes de cette loi sont le coefficient de la dépendance exponentielle (c'est-à-dire ``l'énergie d'activation') et son préfacteur.
L'objectif de cette thèse est de développer une théorie analytique pour déterminer ces deux quantités. La théorie que nous présentons concerne les systèmes unidimensionnels à temps continu ou discret perturbés par un bruit blanc gaussien et nous considérons le problème de l'échappement du bassin d'attraction d'un point fixe attractif. Pour s'échapper, les trajectoires du système bruité initialement contenues dans ce bassin d'attraction doivent alors traverser un point fixe instable qui forme la limite du bassin.
Dans le présent travail, et pour les deux types de systèmes, une formule est dérivée pour le taux d'échappement du point fixe attractif en utilisant des méthodes d'intégrales de chemin. Le calcul utilise la formule de trace pour les valeurs propres de l'opérateur gouvernant l'évolution temporelle de la densité de probabilité dans le système bruité. Le taux d'échappement est déterminé en considérant la boucle formée par deux orbites hétéroclines liant dans les deux sens les deux points fixes dans un système dynamique auxiliaire symplectique et bidimensionnel. On obtient alors le taux d'échappement, comprenant l'expression du préfacteur de l'exponentielle de la loi de van't Hoff-Arrhenius.
Doctorat en Sciences
info:eu-repo/semantics/nonPublished
Monheim, Frank [Verfasser], and Anton [Akademischer Betreuer] Deitmar. "Non-unitary Trace Formulae / Frank Monheim ; Betreuer: Anton Deitmar." Tübingen : Universitätsbibliothek Tübingen, 2015. http://d-nb.info/1163396885/34.
Full textLe, Fourn Samuel. "Points entiers et rationnels sur des courbes et variétés modulaires de dimension supérieure." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0228/document.
Full textThis thesis concerns the study of integral and rational points on some modular curves and varieties. After a brief introduction which describes the motivation and the setting of this topic as well as the main results of this thesis, the manuscript follows a threefold development. The first chapter focuses on Q-curves, and on the morphisms Gal(Q/Q) -> PGL2(Fp) that we can build with a Q-curve for every prime p. We prove that, under good hypotheses, for p large enough with respect to the discriminant of the definition field of the Q-curve, such a morphism is surjective, which solves a particular case of Serre's uniformity problem (still open in general). The main tools of the chapter are Mazur's method (based here on results of Ellenberg), Runge's method, and isogeny theorems, following the strategy of Bilu and Parent. The second chapter covers analytic estimates of weighted sums of L-function values of modular forms, in the fashion of techniques designed by Duke and Ellenberg. The initial goal of such a result is the application of Mazur's method in the first chapter. The third chapter is devoted to the search for generalisations of Runge's method for higherdimensional varieties. Here we prove anew a result of Levin inspired by this method, before proving an enhanced version called "tubular Runge", more generally applicable. In the perspective of studying integral points of modular varieties, we finally give an example of application of this theorem to the reduction of an abelian surface in a product of elliptic curves
Zydor, Michal. "Formules des traces relative de Jacquet-Rallis." Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCC192.
Full textIn this thesis we establish a relative trace formula proposed by Jacquet and Rallis as an approach to the global Gan-Gross-Prasad conjecture for unitary groups. We prove an infinitesimal version of the Jacquet-Rallis relative trace formula for unitary groups in the first part and an infinitesimal version for the linear groups in the second part. In the third part, we establish the coarse relative trace formulae for unitary and linear groups
Östensson, Jörgen. "Trace Formulae for Fourth Order Differential Operators and their Applications." Doctoral thesis, KTH, Mathematics, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3706.
Full textPaper I. Trace Formulae and Spectral Properties of FourthOrder Differential Operators.We derive trace formulae forfourth order differential operators in dimension one anddiscuss their connection with sharp Lieb-Thirring inequalitiesfor the Riesz means of negative eigenvalues of order γ≥ 7/4. We also construct reflectionless potentials forfourth order differential operators.
Paper II. Lieb-Thirring Inequalities for Higher OrderDifferential Operators.We derive Lieb-Thirringinequalities for the Riesz means of eigenvalues of order γ≥ 3=4 for a fourth order operator in arbitrarydimensions. We also consider some extensions to polyharmonicoperators, and to systems of such operators, in dimensionsgreaterthan one.
Paper III. Follytons and the Removal of Eigenvalues forFourth Order Differential Operators.(Joint with J. Hoppeand A. Laptev). A non-linear functional Q[u, v]is given that governs the loss, respectively gain,of (doubly degenerate) eigenvalues of fourth order differentialoperators L = ∂4+ ∂ u ∂ + v on the line. Apart fromfactorizing L as A*A + E0, providing several explicit examples, and derivingvarious relations betweenu, vand eigenfunctions of L, we finduandvsuch that L is isospectral to the free operator L0= ∂4 up to one (multiplicity 2) eigenvalueE0<0. Not unexpectedly, this choice ofu, vleads to exact solutions of the correspondingtime-dependent PDEs.
Li, Wen-Wei. "Vers une formule des traces stable pour le groupe métaplectique." Phd thesis, Université Paris-Diderot - Paris VII, 2011. http://tel.archives-ouvertes.fr/tel-00606273.
Full textVasilyev, Vladimir. "Second-Order Trace Formulas in Szegö-type Theorems." Master's thesis, Universitätsbibliothek Chemnitz, 2007. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200700199.
Full textWang, Yingnan, and 王英男. "Trace formulas and their applications on Hecke eigenvalues." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48329526.
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Mathematics
Doctoral
Doctor of Philosophy
Vasil'ev, Vladimir A. Silbermann Bernd. "Second-order trace formulas in Szegö-type theorems." [S.l. : s.n.], 2007.
Find full textNg, Ming-ho, and 吳銘豪. "The basis for space of cusp forms and Petersson trace formula." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B47176726.
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Master
Master of Philosophy
Awonusika, Richard Olu. "Harmonic analysis in non-Euclidean geometry : trace formulae and integral representations." Thesis, University of Sussex, 2016. http://sro.sussex.ac.uk/id/eprint/65356/.
Full textUsman, Muhammad. "Trace formulae and spectral inequalities for a class of differential operators." Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/14689.
Full textChaudouard, Pierre-Henri. "La formule des traces pour les algèbres de Lie et applications." Paris 7, 2002. http://www.theses.fr/2002PA077047.
Full textZuniga, Alterman Sebastian. "Smoothing and cancellation : the Barban-Vehov sieve made explicit." Thesis, Université de Paris (2019-....), 2019. http://www.theses.fr/2019UNIP7134.
Full textConsider the Selberg sieve type sum ∑m≤X(∑d|m μ(d)·ρd)2, where d→ρd is a weight for the sum∑d|nμ(d). We study the logarithmic and Barban-Vehov weights, defined, respectively, as L:d→log+(U/d), U>1, V:d→log+(U1/d)−log+(U0/d), 1≤U0
Vázquez, Benítez María Cecilia. "Computer-aided formula optimization." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29202.
Full textLand and Food Systems, Faculty of
Graduate
Nikolov, Martin Bozhidarov. "Construction of Series of Degenerate Representations for GSp(2) and PGL(n)." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1211149487.
Full textSugita, Ayumu. "Semiclassical trace formulas in terms of phase space path integrals." 京都大学 (Kyoto University), 2000. http://hdl.handle.net/2433/181105.
Full textCamus, Brice. "Formules des traces semi-classique au niveau d'une énergie critique." Reims, 2001. http://www.theses.fr/2001REIMS015.
Full textWe study the semi-classical trace formula on the level of a critical energy for a h-pseudo-differential operator on {R}{̂n} with a unique non-degenerate critical point of the principal symbol. In particular we consider the case where the hessian matrix of the principal symbol at the critical point is non-definite. This lead to the study of Hamiltonan systems near equilibrium and near the non zero periods of the linearised flow. The contributions of these periods leads to reformulate the problem in term of degenerate oscillatory integrals. The new contributions are interpreted in term of the local geometry of the energy surface and the classical dynamic on this energy surface
Kret, Arno. "Stratification de Newton des variétés de Shimura et formule des traces d'Arthur-Selberg." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00802976.
Full textLasy, Trafim. "Traces de Markov spéciales et formule de Gomi pour les groupes de réflexion." Paris 7, 2012. http://www.theses.fr/2012PA07A001.
Full textLebental, Mélanie. "Chaos quantique et micro-lasers organiques." Phd thesis, Université Paris Sud - Paris XI, 2007. http://tel.archives-ouvertes.fr/tel-00194350.
Full textL'originalité de notre étude repose sur l'utilisation de matériaux organiques à faibles indices de réfraction qui facilite le couplage avec l'extérieur de la lumière piégée dans la cavité. Ces billards ouverts présentent des caractéristiques génériques très différentes de celles attendues pour des systèmes équivalents fermés. En particulier, le lien entre optiques géométrique et ondulatoire s'est révélé beaucoup plus étroit.
Nos études expérimentales ont concerné les directions d'émission et les spectres. Pour les premières, nous avons proposé un modèle analytique dans le cas de cavités chaotiques. Concernant les spectres, nous avons développé une méthode d'analyse qui extrait les longueurs géométriques des orbites périodiques. Ce procédé s'avère très efficace pour tester les prédictions théoriques (formule de trace). Par ailleurs, un modèle ondulatoire pour les cavités polygonales ainsi qu'une approche perturbative adaptée aux déformations continues du disque ont été validés par des simulations numériques.
Hsiao, Pai-Yi. "Comportement critique des modèles de spin classiques sur des fractals : magnétisme orbital d'un gaz d'electrons bidimentionnel confiné par un potentiel harmonique." Paris 7, 2002. http://www.theses.fr/2002PA077099.
Full text(I) We study the critical behavior of Ising model and 3-state Pottsmodel on fractals by Monte Carlo simulation. The results obtained byfinite size scaling satisfy the hyperscaling relation with the Hausdorffdimension, but differ from the prediction of epsilon-expansion. Theuniversality of these phase transions is shown to be weak. Moverover, we measure the dynamical exponents of the Wolff algorithm and establisha new scaling law for the size distribution of Wolff clusters. (II) Westudy a 2D electron gas confined by an harmonic potential and introducean exact trace formula in application of the residue theorem. We showthat the magnetism presents three different behaviors: Landau Diamagnetism,de Haas-van Alphen Oscillation and Mesoscopic Fluctuation. In applyingthe coherent state method, we give a formula for current density inducedby the external magnetic field
Do, Viet Cuong. "Le lemme fondamental métaplectique de Jacquet et Mao." Phd thesis, Université de Lorraine, 2012. http://tel.archives-ouvertes.fr/tel-00821520.
Full textSorrell, Ian. "High energy asymptotics and trace formulas for the perturbed harmonic oscillator." Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/12982.
Full textPham, Khoa. "Trace Formulas, Invariant Bilinear Forms and Dynkin Indices of Lie Algebra Representations Over Rings." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31502.
Full textBUFFA, Vito. "BV Functions in Metric Measure Spaces: Traces and Integration by Parts Formulæ." Doctoral thesis, Università degli studi di Ferrara, 2018. http://hdl.handle.net/11392/2488124.
Full textThis thesis offers a survey on the theory of Sobolev and BV functions in the setting of metric measure spaces. We compare different characterizations of such spaces in order to emphasize their relationships along with the conditions which ensure the equivalence of the definitions. Then, we discuss the differential structure introduced by N. Gigli in a paper of 2014 to give a new definition of BV functions in the RCD(K,\infty) setting, making use of suitable vector fileds. Later, in the metric doubling setting with Poincaré inequality, we give new integration by parts formulæ via "divergence-measure" vector fields to attack the issue of traces of BV functions. We compare the theory of "rough traces" (re-adapted to the present setting, cfr. V. Maz'ya) with the trace operator defined via Lebesgue points, finding the conditions under which the two characterizations coincide.
Ratnaseelan, Ratnam. "Trace formulas and algebro-geometric solutions of 1+1 dimensional completely integrable systems /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9720545.
Full textKirsten, Daniel. "Some Undecidability Results related to the Star Problem in Trace Monoids." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-100431.
Full textBelfanti, Edward Michael Jr. "Aspects of Automorphic Induction." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1525706818378677.
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