Relevant bibliographies by topics / Invariant properties / Dissertations / Theses
To see the other types of publications on this topic, follow the link: Invariant properties.

Dissertations / Theses on the topic 'Invariant properties'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Invariant properties.'

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.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Bhattacharyya, Arnab. "Testability of linear-invariant properties." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/68435.

Full text
Abstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 75-80).<br>Property Testing is the study of super-efficient algorithms that solve "approximate decision problems" with high probability. More precisely, given a property P, a testing algorithm for P is a randomized algorithm that makes a small number of queries into its input and distinguishes between whether the input satisfies P or whether the input is "far" from satisfying P, where "farness" of
APA, Harvard, Vancouver, ISO, and other styles
2

Raimbault, Nathaniel. "Gauge-invariant magnetic properties from the current." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30179/document.

Full text
Abstract:
De nombreux phénomènes physiques ne peuvent être compris qu'en s'intéressant à la structure électronique. Cette dernière peut être interprétée en termes de propriétés électromagnétiques, chacune de ces propriétés révélant diverses informations sur le système étudié. Il est donc important d'avoir des outils efficaces afin de calculer de telles propriétés. C'est dans ce contexte que cette thèse a été écrite, notre principal objectif ayant été de développer une méthode générale donnant accès à une vaste gamme de propriétés électromagnétiques. Dans la première partie de cette thèse, nous décrivons
APA, Harvard, Vancouver, ISO, and other styles
3

Hussain, Fawad. "Homological properties of invariant rings of finite groups." Thesis, University of Glasgow, 2011. http://theses.gla.ac.uk/3539/.

Full text
Abstract:
Let $V$ be a non-zero finite dimensional vector space over the finite field $F_q$. We take the left action of $G \le GL(V)$ on $V$ and this induces a right action of $G$ on the dual of $V$ which can be extended to the symmetric algebra $F_q[V]$ by ring automorphisms. In this thesis we find the explicit generators and relations among these generators for the ring of invariants $F_q[V] G$. The main body of the research is in chapters 4, 5 and 6. In chapter 4, we consider three subgroups of the general linear group which preserve singular alternating, singular hermitian and singular quadratic for
APA, Harvard, Vancouver, ISO, and other styles
4

Guo, Alan Xinyu. "Some closure features of locally testable affine-invariant properties." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/79229.

Full text
Abstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 31-32).<br>We prove that the class of locally testable affine-invariant properties is closed under sums, intersections and "lifts". The sum and intersection are two natural operations on linear spaces of functions, where the sum of two properties is simply their sum as a vector space. The "lift" is a less well-studied property, which creates some interesting affine-invariant properties over large do
APA, Harvard, Vancouver, ISO, and other styles
5

Delafargue, A. (Antoine) 1981. "Material invariant properties of shales : nanoindentation and microporoelastic analysis." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28625.

Full text
Abstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, February 2005.<br>Includes bibliographical references (p. 228-236).<br>Shales compose the major part of sedimentary rocks and cover most of hydrocarbon bearing reservoirs. Shale materials are probably one of the most complex natural composites, and their mechanical properties are still an enigma that has deceived many decoding attempts from experimental and theoretical sides. Advanced experimental techniques, such as nanoindentation, and theoretical microporomechanics make it possible today to b
APA, Harvard, Vancouver, ISO, and other styles
6

Ben, Salem Ala Eddine. "Improving the model checking of stutter-invariant LTL properties." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066186/document.

Full text
Abstract:
Les systèmes logiciels sont devenus omniprésents se substituant à l'homme pour des tâches délicates, souvent critiques, mettant en jeu des coûts importants voire des vies humaines. Les conséquences des défaillances imposent la recherche de méthodes rigoureuses pour la validation. L'approche par automates du model-checking est la plus classique des approches de vérification automatique. Elle prend en entrée un modèle du système et une propriété, et permet de savoir si cette dernière est vérifiée. Pour cela un model-checker traduit la négation de la propriété en un automate et vérifie si le prod
APA, Harvard, Vancouver, ISO, and other styles
7

Ben, Salem Ala Eddine. "Improving the model checking of stutter-invariant LTL properties." Electronic Thesis or Diss., Paris 6, 2014. http://www.theses.fr/2014PA066186.

Full text
Abstract:
Les systèmes logiciels sont devenus omniprésents se substituant à l'homme pour des tâches délicates, souvent critiques, mettant en jeu des coûts importants voire des vies humaines. Les conséquences des défaillances imposent la recherche de méthodes rigoureuses pour la validation. L'approche par automates du model-checking est la plus classique des approches de vérification automatique. Elle prend en entrée un modèle du système et une propriété, et permet de savoir si cette dernière est vérifiée. Pour cela un model-checker traduit la négation de la propriété en un automate et vérifie si le prod
APA, Harvard, Vancouver, ISO, and other styles
8

Simmons, Skyler C. "Topological Properties of Invariant Sets for Anosov Maps with Holes." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/3101.

Full text
Abstract:
We begin by studying various topological properties of invariant sets of hyperbolic toral automorphisms in the linear case. Results related to cardinality, local maximality, entropy, and dimension are presented. Where possible, we extend the results to the case of hyperbolic toral automorphisms in higher dimensions, and further to general Anosov maps.
APA, Harvard, Vancouver, ISO, and other styles
9

Julian, Poranee K. "Geometric Properties of the Ferrand Metric." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1353088820.

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

Bobko, Christopher Philip 1981. "Material invariant properties and reconstruction of microstructure of sandstones by nanoindentation and microporoelastic analysis." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/31147.

Full text
Abstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2005.<br>Includes bibliographical references (p. 183-189).<br>The diversity of sandstones and sandstone properties that exist in nature pose a significant problem for engineers who deal with these materials, whether in oil well exploration and exploitation or art and architectural conservation. The solution proposed in this thesis takes a highly reductionist approach to the problem. Properties of the sandstone material are first reduced to material invariant properties of the material phases pre
APA, Harvard, Vancouver, ISO, and other styles
11

Wilbraham, Danelle Alexis. "Using systematic image transformations to reveal invariant properties in the multidimensional perceptual representation of faces." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1276806127.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Ben, Aribi Fathi. "A study of properties and computation techniques of the L2-Alexander invariant in knot theory." Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCC227.

Full text
Abstract:
Cette thèse présente plusieurs propriétés, des valeurs explicites et des techniques de calcul des torsions d'Alexander L2 des variétés de dimension 3 compactes à bord vide ou torique, notamment des extérieurs de noeuds et d'entrelacs. Les torsions d'Alexander L2 sont des généralisations des polynômes d'Alexander tordus, où le complexe de chaînes cellulaires du revêtement universel de la variété est tordu par une représentation du groupe fondamental de la variété sur l'espace des opérateurs d'un espace de Hilbert de dimension infinie. Les torsions d'Alexander L2 des 3-variétés ont été définies
APA, Harvard, Vancouver, ISO, and other styles
13

Lian, Peng. "Pathwise properties of random quadratic mapping." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/6628.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Bjerklöv, Kristian. "Dynamical Properties of Quasi-periodic Schrödinger Equations." Doctoral thesis, KTH, Matematik, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3606.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Jung, Alexandra. "Tuning the structural and magnetic properties of Sr2FeReO6 by substituting Fe and Re with valence invariant metals /." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=98039189X.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Constantinides, Georgios 1978. "Invariant mechanical properties of calcium-silicate-hydrates (C-H-S) in cement-based materials : instrumented nanoindentation and microporomechanical modeling." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/34377.

Full text
Abstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2006.<br>Includes bibliographical references (p. 455-478).<br>Random porous solids such as bone and geomaterials exhibit a multiphase composite nature, characterized by water-filled pores of nm- to m-scale diameter. The natural synthesis and operating environments of such materials significantly alters phase composition and multiscale structural heterogeneities throughout the material lifetime, defining significant changes in macroscopic mechanical performance for applications ranging from mul
APA, Harvard, Vancouver, ISO, and other styles
17

Lindeberg, Tony. "Scale Selection Properties of Generalized Scale-Space Interest Point Detectors." KTH, Beräkningsbiologi, CB, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-101220.

Full text
Abstract:
Scale-invariant interest points have found several highly successful applications in computer vision, in particular for image-based matching and recognition. This paper presents a theoretical analysis of the scale selection properties of a generalized framework for detecting interest points from scale-space features presented in Lindeberg (Int. J. Comput. Vis. 2010, under revision) and comprising: an enriched set of differential interest operators at a fixed scale including the Laplacian operator, the determinant of the Hessian, the new Hessian feature strength measures I and II and the rescal
APA, Harvard, Vancouver, ISO, and other styles
18

De, Oliveira Steven. "Finding constancy in linear routines." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS207/document.

Full text
Abstract:
La criticité des programmes dépasse constamment de nouvelles frontières car ils sont de plus en plus utilisés dans la prise de décision (voitures autonomes, robots chirurgiens, etc.). Le besoin de développer des programmes sûrs et de vérifier les programmes existants émerge donc naturellement.Pour prouver formellement la correction d'un programme, il faut faire face aux défis de la mise à l'échelle et de la décidabilité. Programmes composés de millions de lignes de code, complexité de l'algorithme, concurrence, et même de simples expressions polynomiales font partis des problèmes que la vérifi
APA, Harvard, Vancouver, ISO, and other styles
19

Malý, Lukáš. "Sobolev-Type Spaces : Properties of Newtonian Functions Based on Quasi-Banach Function Lattices in Metric Spaces." Doctoral thesis, Linköpings universitet, Matematik och tillämpad matematik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105616.

Full text
Abstract:
This thesis consists of four papers and focuses on function spaces related to first-order analysis in abstract metric measure spaces. The classical (i.e., Sobolev) theory in Euclidean spaces makes use of summability of distributional gradients, whose definition depends on the linear structure of Rn. In metric spaces, we can replace the distributional gradients by (weak) upper gradients that control the functions’ behavior along (almost) all rectifiable curves, which gives rise to the so-called Newtonian spaces. The summability condition, considered in the thesis, is expressed using a general B
APA, Harvard, Vancouver, ISO, and other styles
20

Romeo, Francesco. "Algebraic Properties and Invariants of Polyominoes." Doctoral thesis, Università degli studi di Trento, 2022. http://hdl.handle.net/11572/346499.

Full text
Abstract:
Polyominoes are two-dimensional objects obtained by joining edge by edge squares of same size. Originally, polyominoes appeared in mathematical recreations, but it turned out that they have applications in various fields, for example, theoretical physics and bio-informatics. Among the most popular topics in combinatorics related to polyominoes one finds enumerating polyominoes of given size, including the asymptotic growth of the numbers of polyominoes, tiling problems, and reconstruction of polyominoes. Recently Qureshi introduced a binomial ideal induced by the geometry of a given polyomino,
APA, Harvard, Vancouver, ISO, and other styles
21

Brunnbauer, Michael. "Topological properties of asymptotic invariants and universal volume bounds." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-87504.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Zhang, Lizhao 1973. "Rigidity and invariance properties of certain geometric frameworks." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8337.

Full text
Abstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 2002.<br>Includes bibliographical references (leaves 59-60).<br>Given a degenerate (n + 1)-simplex in a n-dimensional Euclidean space Rn, which is embedded in a (n + 1)-dimensional Euclidean space Rn+l. We allow all its vertices to have continuous motion in the space, either in Rn+l or restricted in Rn. For a given k, based on certain rules, we separate all its k-faces into 2 groups. During the motion, we give the following restriction: the volume of the k-faces in the 1st group can not increase (these faces are call
APA, Harvard, Vancouver, ISO, and other styles
23

Abedi, Ali. "Invariance Properties and Performance Evaluation of Bit Decoding Algorithms." Thesis, University of Waterloo, 2004. http://hdl.handle.net/10012/768.

Full text
Abstract:
Certain properties of optimal bitwise APP (A Posteriori Probability) decoding of binary linear block codes are studied. The focus is on the Probability Density Function (<i>pdf</i>) of the bit Log-Likelihood-Ratio (<i>LLR</i>). A general channel model with discrete (not necessarily binary) input and discrete or continuous output is considered. It is proved that under a set of mild conditions on the channel, the <i>pdf</i> of the bit <i>LLR</i> of a specific bit position is independent of the transmitted code-word. It is also shown that the <i>pdf</i> of a given bit <i>LLR</i>, when the
APA, Harvard, Vancouver, ISO, and other styles
24

Mach, Taylor Joseph. "Accurate Prediction of Chiroptical Properties." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/64301.

Full text
Abstract:
Accurate theoretical predictions of optical rotation are of substantial utility to the chemical community enabling the determination of absolute configuration without the need for poten- tially lengthy total synthesis. The requirements for robust calculation of gas-phase optical rotation are well understood, but too expensive for routine use. In an effort to reduce this cost we have examined the performance of the LPol and ORP basis sets, created for use in density functional theory calculations of optical rotation, finding that at the coupled cluster level of theory they perform the same or b
APA, Harvard, Vancouver, ISO, and other styles
25

Han, Yena. "Invariance properties of the human visual system in one-shot learning." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/119589.

Full text
Abstract:
Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 45-46).<br>This work first characterizes human invariant recognition in one-shot learning. By using novel stimuli, we address the question whether invariance to transformation emerges from experience and memorization of templates or from the brain instantly computing invariant representation. Our psychophysical experimental results suggest that human vision produces a representation that i
APA, Harvard, Vancouver, ISO, and other styles
26

Weismantel, Eric. "Perceptual Salience of Non-accidental Properties." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1376610211.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Harrison, Ryan K. S. "Investigating the Relationships Between Material Properties and Microstructural Shapes as Quantified by Moment Invariants." Research Showcase @ CMU, 2018. http://repository.cmu.edu/dissertations/1162.

Full text
Abstract:
The analysis of microstructural shapes is an underutilized tool in the field of materials science. Typical observations of morphology are qualitative, rather than quantitative, which prevents the identification of relationships between shape and the mechanical properties of a material. Recent advances in the fields of computer vision and high-dimensional analysis have made computer-based shape characterization feasible on a variety of materials. In this work, the relationship between microstructural shapes, and the properties and function of the material as a whole, is explored using moment in
APA, Harvard, Vancouver, ISO, and other styles
28

El, Sokhen Rabih. "Two-dimensional topological properties of photonic mesh lattices subject to discrete step walks." Electronic Thesis or Diss., Université de Lille (2022-....), 2024. http://www.theses.fr/2024ULILR067.

Full text
Abstract:
Cette thèse explore expérimentalement et numériquement les invariants de volume et de bord dans un réseau photonique synthétique 2D soumis à des marches discrètes. Le réseau est réalisé par multiplexage temporal d'impulsions lumineuses dans deux anneaux de fibres optiques de longueurs inégales, couplés à un coupleur variable (VBS). Dans cette configuration, une dimension présente une dynamique dans l'espace réel, tandis que l'autre est gouvernée par un modulateur de phase externe (PM). En utilisant la détection hétérodyne, nous accédons aux informations spectrales et mesurons les valeurs propr
APA, Harvard, Vancouver, ISO, and other styles
29

Erwee, Jurie J. J. "A psychometric assessment of the Temperament and Character Inventory in a South African sample of police recruits." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/46109.

Full text
Abstract:
The current investigation is post-hoc in nature and is nested in a larger research project, which aimed to explore and compare the personality characteristics, coping mechanisms and psychological well-being of South African and Swedish police trainees. The purpose of this particular study was to explore the psychometric properties of the Cloninger’s Temperament and Character Inventory (TCI) in a sample of South African Police trainees. A literature review highlighted that the TCI has the potential to be applied across various cultures without the risk of any ethnic or gender bias; this charac
APA, Harvard, Vancouver, ISO, and other styles
30

Andreescu, Oana Fabiana. "Static analysis of functional programs with an application to the frame problem in deductive verification." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1S047/document.

Full text
Abstract:
Dans le domaine de la vérification formelle de logiciels, il est impératif d'identifier les limites au sein desquelles les éléments ou fonctions opèrent. Ces limites constituent les propriétés de frame (frame properties en anglais). Elles sont habituellement spécifiées manuellement par le programmeur et leur validité doit être vérifiée: il est nécessaire de prouver que les opérations du programme n'outrepassent pas les limites ainsi déclarées. Dans le contexte de la vérification formelle interactive de systèmes complexes, comme les systèmes d'exploitation, un effort considérable est investi da
APA, Harvard, Vancouver, ISO, and other styles
31

Coutant, Antonin. "On the phenomenology of quantum gravity : stability properties of Hawking radiation in the presence of ultraviolet violation of local Lorentz invariance." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112213/document.

Full text
Abstract:
Dans cette thèse, nous étudions plusieurs aspects de la radiation de Hawking en présence de violations de l'invariance locale de Lorentz. Ces violations sont introduites par une modification de la relation de dispersion, devenant non-linéaire aux courtes longueurs d’onde. Les principales motivations de ces travaux ont une double origine. Il y a d’une part le développement en matière condensée de trous noirs analogues, ou l’écoulement d’un fluide est perçu comme une métrique d’espace-temps pour les ondes de perturbations et ou la radiation de Hawking pourrait être détectée expérimentalement. D’
APA, Harvard, Vancouver, ISO, and other styles
32

Rérat, Michel. "Methode invariante de jauge pour le calcul de proprietes magnetiques : applications a de petites molecules." Paris 6, 1987. http://www.theses.fr/1987PA066024.

Full text
Abstract:
Developpement d'une technique de calcul des proprietes magnetiques qui combine les avantages des methodes classiques tenant compte de la correlation electronique et qui conserve l'invariance de jauge de la methode des polynomes par un systeme de compensation interne. Calcul des corrections rovibroniques, decrites analytiquement par la methode des perturbation, pour des molecules diatomiques (h::(2), co) pour une comparaison des resultats theoriques et experimentaux
APA, Harvard, Vancouver, ISO, and other styles
33

Akrour, Nawal. "Simulation stochastique des précipitations à fine échelle : application à l'observation en milieu urbain." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLV014/document.

Full text
Abstract:
Les précipitations ont une très grande variabilité sur une large gamme d'échelles tant spatiale que temporelle. Cette variabilité est une source importante d'incertitude pour la mesure, les applications et la modélisation, et au-delà pour la simulation et la prévision. De plus, les précipitations sont des processus extrêmement intermittents et possèdent plusieurs régimes d’invariance d’échelle. Le générateur de champ précipitant développé au cours de la thèse est basé sur la modélisation statistique de l’hétérogénéité et de l’intermittence des précipitations à fine échelle. L’originalité de la
APA, Harvard, Vancouver, ISO, and other styles
34

Persi, Erez. "Contrast and tuning response properties of neurons in the visual cortex : modeling and data analysis." Paris 6, 2008. http://www.theses.fr/2008PA066216.

Full text
Abstract:
We have combined a theoretical and experimental approach to study the biophysical substrates for the coding of orientation and contrast in the activity of V1 neurons. We first explore theoretically how the emerging activity in V1 depends on the input properties, single neuron input-output transfer-function properties and the connectivity pattern within V1. We explain the conditions on the different input sources in a hypercolumn model, that allow for both contrast-invariant orientation tuning width and sigmoid contrast response functions (CRF). We emphasize the role of the systems' components
APA, Harvard, Vancouver, ISO, and other styles
35

Petrowski, Katja, Sören Kliem, Michael Sadler, Alicia E. Meuret, Thomas Ritz, and Elmar Brähler. "Factor structure and psychometric properties of the english version of the trier inventory for chronic stress (TICS-E)." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-234462.

Full text
Abstract:
Background Demands placed on individuals in occupational and social settings, as well as imbalances in personal traits and resources, can lead to chronic stress. The Trier Inventory for Chronic Stress (TICS) measures chronic stress while incorporating domain-specific aspects, and has been found to be a highly reliable and valid research tool. The aims of the present study were to confirm the German version TICS factorial structure in an English translation of the instrument (TICS-E) and to report its psychometric properties. Methods A random route sample of healthy participants (N = 483) age
APA, Harvard, Vancouver, ISO, and other styles
36

Akrour, Nawal. "Simulation stochastique des précipitations à fine échelle : application à l'observation en milieu urbain." Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLV014.

Full text
Abstract:
Les précipitations ont une très grande variabilité sur une large gamme d'échelles tant spatiale que temporelle. Cette variabilité est une source importante d'incertitude pour la mesure, les applications et la modélisation, et au-delà pour la simulation et la prévision. De plus, les précipitations sont des processus extrêmement intermittents et possèdent plusieurs régimes d’invariance d’échelle. Le générateur de champ précipitant développé au cours de la thèse est basé sur la modélisation statistique de l’hétérogénéité et de l’intermittence des précipitations à fine échelle. L’originalité de la
APA, Harvard, Vancouver, ISO, and other styles
37

Bennani, Faïçal. "Contribution à l'étude des solutions solides ternaires antiferromagnétiques." Nancy 1, 1987. http://www.theses.fr/1987NAN10039.

Full text
Abstract:
Mesures de la chaleur massique de solutions solides MNO-COO-NIO par microcalorimétrie adiabatique au moyen d'un appareillage amélioré et automatisé. Détermination du point de neel des solutions solides ; séparation des contributions élastique et magnétique à la chaleur massique et calcul de l'entropie et de l'énergie magnétiques
APA, Harvard, Vancouver, ISO, and other styles
38

Azevedo, Davide Manuel Santos. "Statistical properties for systems with weak invariant manifolds." Doctoral thesis, 2013. https://repositorio-aberto.up.pt/handle/10216/69131.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Azevedo, Davide Manuel Santos. "Statistical properties for systems with weak invariant manifolds." Tese, 2013. https://repositorio-aberto.up.pt/handle/10216/69131.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Mathebula, Agreement. "Symmetry analysis and invariant properties of some partial differential equations". Thesis, 2017. http://hdl.handle.net/10539/23609.

Full text
Abstract:
A dissertation submitted to the Faculty of Science, University of the Witwatersrand, in requirement for the degree Master of Science, January 2017.<br>This dissertation contains evolutionary partial differential equations (PDEs). The PDEs are used to investigate ecological phenomena. The main goal is to determine Lie point symmetries, perform Lie reduction, obtain analytical solutions and visualize the solutions in 3D plots using the help of Mathematica. Drift diffusion, biased diffusion and the Kierstead, Slobodkin and Skellam (KiSS) models arising in population ecology are discussed. The impor
APA, Harvard, Vancouver, ISO, and other styles
41

Samanta, Urmila. "Radial moments for invariant image analysis: computational and statistical aspects." 2013. http://hdl.handle.net/1993/22062.

Full text
Abstract:
Zernike moments are sets of mathematical quantities that uniquely characterize an image. It is known that they are invariant under rotation and reflection and robust to noise. In this thesis several other algorithms have been used to calculate these moments. The intent of this thesis is: 1. to use the classical method and the algorithms to reconstruct an image using Zernike moments and study their accuracy and 2. to examine if the invariance and noise insensitivity property of the calculated Zernike moments are upheld by these procedures. It is found that the constructed images using t
APA, Harvard, Vancouver, ISO, and other styles
42

Adl-Zarabi, Kourosh. "Existence and properties of absolutely continuous invariant measures for higher dimensional chaotic transformations." Thesis, 1996. http://spectrum.library.concordia.ca/3210/1/NN10817.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Brown, Mary Esther. "Children's naming of subject categories developmental differences in the invariant properties of category labelling /." 1994. http://books.google.com/books?id=j9PgAAAAMAAJ.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Islam, Md Shafiqul. "Existence, approximation and properties of absolutely continuous invariant measures for random maps /cMd. Shafiqul Islam." Thesis, 2004. http://spectrum.library.concordia.ca/8344/1/NR04042.pdf.

Full text
Abstract:
A random map is a discrete-time dynamical system where one of a number of transformations is selected randomly and applied in each iteration of the process. In this thesis we study existence, approximation and properties of absolutely continuous invariant measures (acim) for random maps and obtain several new results. We generalize a result of Straube, which provides a necessary and sufficient condition for existence of an acim of a nonsingular map, to random maps. We approximate absolutely continuous invariant measures for Markov switching position dependent random maps using Ulam's method. F
APA, Harvard, Vancouver, ISO, and other styles
45

Ghamarshoushtari, Reza. "Amenability Properties of Banach Algebra of Banach Algebra-Valued Continuous Functions." 2014. http://hdl.handle.net/1993/23354.

Full text
Abstract:
In this thesis we discuss amenability properties of the Banach algebra-valued continuous functions on a compact Hausdorff space X. Let A be a Banach algebra. The space of A-valued continuous functions on X, denoted by C(X,A), form a new Banach algebra. We show that C(X,A) has a bounded approximate diagonal (i.e. it is amenable) if and only if A has a bounded approximate diagonal. We also show that if A has a compactly central approximate diagonal then C(X,A) has a compact approximate diagonal. We note that, unlike C(X), in general C(X,A) is not a C*-algebra, and is no longer commutative if A i
APA, Harvard, Vancouver, ISO, and other styles
46

Jung, Alexandra [Verfasser]. "Tuning the structural and magnetic properties of Sr2FeReO6 by substituting Fe and Re with valence invariant metals / Alexandra Jung." 2006. http://d-nb.info/98039189X/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

LIN, CHIU-HUA, and 林秋華. "The invariants of finite groups: properties of algebra." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/03559556832599421850.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

(10703055), Guodong Jiang. "INTERPLAY OF GEOMETRY WITH IMPURITIES AND DEFECTS IN TOPOLOGICAL STATES OF MATTER." Thesis, 2021.

Find full text
Abstract:
The discovery of topological quantum states of matter has required physicists to look beyond Landau’s theory of symmetry-breaking, previously the main paradigm for<br>studying states of matter. This has led also to the development of new topological theories for describing the novel properties. In this dissertation an investigation in this<br>frontier research area is presented, which looks at the interplay between the quantum geometry of these states, defects and disorder. After a brief introduction to the topological quantum states of matter considered herein, some aspects of my work in this
APA, Harvard, Vancouver, ISO, and other styles
49

Dorfling, Samantha. "Generalized chromatic numbers and invariants of hereditary graph properties." Thesis, 2011. http://hdl.handle.net/10210/4149.

Full text
Abstract:
D. Phil (Mathematics)<br>In this thesis we investigate generalized chromatic numbers in the context of hereditary graph properties. We also investigate the general topic of invariants of graphs as well as graph properties. In Chapter 1 we give relevant definitions and terminology pertaining to graph properties. In Chapter 2 we investigate generalized chromatic numbers of some well-known additive hereditary graph properties. This problem necessitates the investigation of reducible bounds. One of the results here is an improvement on a known upper bound for the path partition number of the prope
APA, Harvard, Vancouver, ISO, and other styles
50

CARILLO, Sandra. "Invariance properties and symmetry structure of integrable systems." Doctoral thesis, 1989. http://hdl.handle.net/11573/490223.

Full text
Abstract:
Il Dottorato di Ricerca (PhD) e` stato conseguito in CANADA, University of Waterloo, Waterloo, Ontario, Canada. Tesi depositata alla Biblioteca Nazionale Canadese ISBN: 978-0315-49213-4 L'abstract e` solo in inglese.<br>This thesis is concerned about various aspects of 1 + 1 dimensional non-linear evolution equations. In particular, it is devoted to the study of those properties which can be obtained by the application of non-linear transformations, such as Cole-Hopf, Miura and reciprocal-type transformations. The concept of Backlund Chart is introduced to depict succinctly the various rel
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the bibliographies on the topic 'Invariant properties' for other source types:
Journal articles 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