Relevant bibliographies by topics / Limit problem / Dissertations / Theses
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Dissertations / Theses on the topic 'Limit problem'

Author: Grafiati
Published: 28 May 2022
Last updated: 30 July 2025

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1

Almada, Monter Sergio Angel. "Scaling limit for the diffusion exit problem." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39518.

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A stochastic differential equation with vanishing martingale term is studied. Specifically, given a domain D, the asymptotic scaling properties of both the exit time from the domain and the exit distribution are considered under the additional (non-standard) hypothesis that the initial condition also has a scaling limit. Methods from dynamical systems are applied to get more complete estimates than the ones obtained by the probabilistic large deviation theory. Two situations are completely analyzed. When there is a unique critical saddle point of the deterministic system (the system without r
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2

Flandoli, Franco, and Michael Högele. "A solution selection problem with small stable perturbations." Universität Potsdam, 2014. http://opus.kobv.de/ubp/volltexte/2014/7120/.

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The zero-noise limit of differential equations with singular coefficients is investigated for the first time in the case when the noise is a general alpha-stable process. It is proved that extremal solutions are selected and the probability of selection is computed. Detailed analysis of the characteristic function of an exit time form on the half-line is performed, with a suitable decomposition in small and large jumps adapted to the singular drift.
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3

Pérez-González, Set. "On the number of limit cycles for some families of planar differential equations." Doctoral thesis, Universitat Autònoma de Barcelona, 2012. http://hdl.handle.net/10803/96274.

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4

O'Connor, Zoe Ann. "Length bounds for the conjugacy search problem in relatively hyperbolic groups, limit groups and residually free groups." Thesis, Heriot-Watt University, 2014. http://hdl.handle.net/10399/2819.

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In this thesis we prove conjugacy length bounds for several classes of groups. We use geometric and algebraic methods to show that there is a polynomial conjugacy length bound for relatively hyperbolic groups, a linear multiple conjugacy length bound for limit groups, and a polynomial multiple conjugacy length bound for nitely presented residually free groups.
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5

David, Noemi. "Incompressible limit and well-posedness of PDE models of tissue growth." Electronic Thesis or Diss., Sorbonne université, 2022. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2022SORUS235.pdf.

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Les modèles de milieux poreux, en régime compressible ou incompressible, sont utilisés dans la littérature pour décrire les propriétés mécaniques des tissus vivants et en particulier de la croissance tumorale. Il est possible de construire un lien entre ces deux différentes représentations en utilisant une loi de pression raide. Dans la limite incompressible, les modèles compressibles conduisent à des problèmes de frontières libres de type Hele-Shaw. Nos travaux visent à étudier la limite de pression raide des équations de type milieu poreux motivées par le développement tumoral. Notre premièr
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6

Giroire, Jean. "Etude de quelques problèmes aux limites extérieurs et résolution par équations intégrales." Paris 6, 1987. http://www.theses.fr/1987PA066399.

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Les 2 premiers chapitres de ce travail sont consacres a l'etude du comportement a l'infini de diverses solutions de problemes aux limites exterieurs (dirichlet, neumann) relatifs a des operateurs de type laplacien (operateurs de laplace, biharmonique, stokes. . . ). Ceci nous conduit a introduire deux familles d'espaces de sobolev avec poids, la 2eme etant indispensable pour exprimer certains resultats de regularite en dimension 2. Les chapitres 3 et 5 developpent 2 methodes d'elimination des noyaux hypersinguliers apparaissant dans des formulations par des potentiels de double couche pour des
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7

Кірічок, Тетяна Анатоліївна, Татьяна Анатольевна Киричек, Tetiana Anatoliivna Kirichok, Марина Володимирівна Синах, Марина Владимировна Сынах та Maryna Volodymyrivna Synakh. "Розв’язок двовимірної граничної задачі для симетричного рівняння аномальної дифузії". Thesis, Сумський державний університет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/39348.

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8

Jordan, Victoria Spooner Maghsoodloo Saeed. "The optimum upper screening limit and optimum mean fill level to maximize expected net profit in the canning problem for finite continuous distributions." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/doctoral/JORDAN_VICTORIA_18.pdf.

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9

Torstensson, Johan. "Computation of Mileage Limits for Traveling Salesmen by Means of Optimization Techniques." Thesis, Linköping University, Department of Mathematics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-12473.

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<p>Many companies have traveling salesmen that market and sell their products.This results in much traveling by car due to the daily customer visits. Thiscauses costs for the company, in form of travel expenses compensation, and environmentaleffects, in form of carbon dioxide pollution. As many companies arecertified according to environmental management systems, such as ISO 14001,the environmental work becomes more and more important as the environmentalconsciousness increases every day for companies, authorities and public.The main task of this thesis is to compute reasonable limits on the m
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10

Repasky, Tomas [Verfasser], Axel [Akademischer Betreuer] Werwatz, Axel [Gutachter] Werwatz, and Christian F. [Gutachter] Durach. "Estimating causal effects by utilizing exogenous variation to limit the self-selection problem / Tomas Repasky ; Gutachter: Axel Werwatz, Christian F. Durach ; Betreuer: Axel Werwatz." Berlin : Technische Universität Berlin, 2021. http://d-nb.info/1231908335/34.

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11

Puchuri, Liliana. "Clasificación de foliaciones elípticas inducidas por campos cuadráticos reales con centro." Pontificia Universidad Católica del Perú, 2016. http://repositorio.pucp.edu.pe/index/handle/123456789/97003.

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Embedded in the study of Hilbert's innitesimal problem is the question of existence and number of limit cycles of linear perturbations of Hamiltonian fields. Since there is available a classication of real quadratic fields with center in R2, we can match them with complex fields in C2 that induce a foliation in P2. Our objective is to classify the foliations in P2 induced by the elds obtained by said classication of quadratic fields with center which are elliptic brations, that is, the ones with level curves of genus one.<br>En el estudio del problema infinitesimal de Hilbert se encuentra inme
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12

Belisário, Hugo Leonardo da Silva. "Ciclos limite para a equação de Abel generalizada." Universidade Federal de Goiás, 2009. http://repositorio.bc.ufg.br/tede/handle/tde/2883.

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Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2014-08-06T10:24:20Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) ciclos_limites_para_a_equacao_de_abel_generalizada.pdf: 641062 bytes, checksum: e4be39606562d4f6805c21c2cceb451c (MD5)<br>Made available in DSpace on 2014-08-06T10:24:20Z (GMT). No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) ciclos_limites_para_a_equacao_de_abel_generalizada.pdf: 641062 bytes, checksum: e4be39606562d4f6805c21c2cceb451c (MD5) Previous issue date: 2009-1
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Kamalu, Elisha K. "Effects of In-Home Positive Behavior Support Training on Parent Perceptions of Parent-Child Relationships and Maladaptive Behavior." BYU ScholarsArchive, 2008. https://scholarsarchive.byu.edu/etd/1404.

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This study investigated the effects of the positive behavior support program Family HOPE conducted in homes of families of children with disabilities. Graduate students conducted an 8-10 week collaborative method of training for parents of children with disabilities to reduce problem behaviors of their child with a disability. The Parent-Child Relationship Inventory (PCRI) and Scales of Independent Behavior-Revised (SIB-R) were given to both experimental and control group families to investigate the program effects on parents' perceptions of limit setting, parental support, frequency and sever
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14

Yeung, Deryck. "Maximally smooth transition: the Gluskabi raccordation." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42756.

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The objective of this dissertation is to provide a framework for constructing a transitional behavior, connecting any two trajectories from a set with a particular characteristic, in such a way that the transition is as inconspicuous as possible. By this we mean that the connection is such that the characteristic behavior persists during the transition. These special classes include stationary solutions, limit cycles etc. We call this framework the Gluskabi raccordation. This problem is motivated from physical applications where it is often desired to steer a system from one stationary solutio
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15

Uran, Matthias [Verfasser], Axel [Gutachter] Klawonn, Oliver [Gutachter] Rheinbach, and Jörg [Gutachter] Schröder. "High-Performance Computing Two-Scale Finite Element Simulations of a Contact Problem Using Computational Homogenization - Virtual Forming Limit Curves for Dual-Phase Steel / Matthias Uran ; Gutachter: Axel Klawonn, Oliver Rheinbach, Jörg Schröder." Köln : Universitäts- und Stadtbibliothek Köln, 2020. http://d-nb.info/1215837089/34.

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16

Hewlett, Patrick. "Limit order books and liquidation problems." Thesis, University of Oxford, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.640157.

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This thesis concerns the mathematical modeling of limit order books. We study zero-intelligence ("ZI ") models of limit order books where order book events are governed by Poisson processes. Extending the mean-field approximations of [1] to the time-inhomogeneous case, we study the expected relaxation of the order book and mid price movement following an out-of equilibrium initial condition. The resulting equations are suggestive of how limit order book state might be used as a trading signal in liquidation algorithms or proprietary trading. The same mean-field techniques are used to study the
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17

Gontcharov, Aleksandr. "On the Conjugacy of Maximal Toral Subalgebras of Certain Infinite-Dimensional Lie Algebras." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/26086.

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We will extend the conjugacy problem of maximal toral subalgebras for Lie algebras of the form $\g{g} \otimes_k R$ by considering $R=k[t,t^{-1}]$ and $R=k[t,t^{-1},(t-1)^{-1}]$, where $k$ is an algebraically closed field of characteristic zero and $\g{g}$ is a direct limit Lie algebra. In the process, we study properties of infinite matrices with entries in a B\'zout domain and we also look at how our conjugacy results extend to universal central extensions of the suitable direct limit Lie algebras.
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18

Silva, Matheus Secco Torres da. "Central limit theorems for risk averse optimization problems." reponame:Repositório Institucional do FGV, 2017. http://hdl.handle.net/10438/18174.

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Submitted by Matheus Secco (matheussecco@gmail.com) on 2017-03-30T14:44:36Z No. of bitstreams: 1 Dissertationv1.pdf: 1226979 bytes, checksum: b1c15064fcaca2155b2a32a2488012ac (MD5)<br>Approved for entry into archive by Janete de Oliveira Feitosa (janete.feitosa@fgv.br) on 2017-04-06T14:26:56Z (GMT) No. of bitstreams: 1 Dissertationv1.pdf: 1226979 bytes, checksum: b1c15064fcaca2155b2a32a2488012ac (MD5)<br>Made available in DSpace on 2017-04-12T17:45:01Z (GMT). No. of bitstreams: 1 Dissertationv1.pdf: 1226979 bytes, checksum: b1c15064fcaca2155b2a32a2488012ac (MD5) Previous issue date: 201
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19

Hall, Eric Joseph. "Accelerated numerical schemes for deterministic and stochastic partial differential equations of parabolic type." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8038.

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First we consider implicit finite difference schemes on uniform grids in time and space for second order linear stochastic partial differential equations of parabolic type. Under sufficient regularity conditions, we prove the existence of an appropriate asymptotic expansion in powers of the the spatial mesh and hence we apply Richardson's method to accelerate the convergence with respect to the spatial approximation to an arbitrarily high order. Then we extend these results to equations where the parabolicity condition is allowed to degenerate. Finally, we consider implicit finite difference a
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20

Fogelklou, Oswald. "Computer-Assisted Proofs and Other Methods for Problems Regarding Nonlinear Differential Equations." Doctoral thesis, Uppsala universitet, Analys och tillämpad matematik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-161314.

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This PhD thesis treats some problems concerning nonlinear differential equations. In the first two papers computer-assisted proofs are used. The differential equations there are rewritten as fixed point problems, and the existence of solutions are proved. The problem in the first paper is one-dimensional; with one boundary condition given by an integral. The problem in the second paper is three-dimensional, and Dirichlet boundary conditions are used. Both problems have their origins in fluid dynamics. Paper III describes an inverse problem for the heat equation. Given the solution, a solution
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21

Souza, Felipe José Lacerda de. "Uso de espinores na investigação do limite de Karlhede para ondas pp." Universidade do Estado do Rio de Janeiro, 2014. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=7545.

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Neste trabalho foi feito um estudo do limite de Karlhede para ondas pp. Para este fim, uma revisão rigorosa de Geometria Diferencial foi apresentada numa abordagem independente de sistemas de coordenadas. Além da abordagem usual, a curvatura de uma variedade riemanniana foi reescrita usando os formalismos de referenciais, formas diferenciais e espinores do grupo de Lorentz. O problema de equivalência para geometrias riemannianas foi formulado e as peculiaridades de sua aplicação é a Relatividade Geral são delineadas. O limite teórico de Karlhede para espaços-tempo de vácuo de tipo Petrov N foi
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22

VELLOSO, VANIA REGINA. "DETERMINATION LOWER LIMITS VALUES ​​PROBLEMS OF EIGENVALUES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1990. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33242@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>Neste trabalho é proposto um método numérico de fácil implementação com a finalidade de obter limites inferiores para auto-valores associados com equações diferenciais ordinárias. Este método transforma, sob determinadas condições, a equação diferencial original em uma outra equação diferencial com coeficientes constantes cuja solução analítica é facilmente determinada. É então mostrado, que os auto-valores obtidos desta transformação representam limites inferiores para os auto-valores do problema original. Alguns casos práticos s
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23

Chen, Warren C. (Warren Chi). "A formulation of nonlinear limit cycle oscillation problems in aircraft flutter." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/47325.

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24

Ukritchon, Boonchai 1970. "Application of numerical limit analyses for undrained stability problems in clay." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/9591.

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Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998.<br>Includes bibliographical references.<br>This thesis describes the development and application of numerical limit analyses for planar, undrained stability problems in geotechnical engineering. The proposed analyses formulate upper and lower bound theorems for perfectly plastic, cohesive­frictional soils as linear programming problems, with spatial variations of the unknown velocities and stresses approximated by standard finite element interpolation functions. The thesis includes three
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Kettle, Nancy M. "Informed Consent: Its Origin, Purpose, Problems, and Limits." Scholar Commons, 2002. https://scholarcommons.usf.edu/etd/1523.

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The doctrine of informed consent, defined as respect for autonomy, is the tool used to govern the relationship between physicians and patients. Its framework relies on rights and duties that mark these relationships. The main purpose of informed consent is to promote human rights and dignity. Some researchers claim that informed consent has successfully replaced patients' historical predispositions to accept physicians' advice without much explicit resistance. Although the doctrine of informed consent promotes ideals worth pursuing, a successful implementation of these ideals in practice has y
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26

田淑敏 and Suk-man Tin. "The application of probability limit theorems to problems in DNA sequence analysis." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31211896.

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27

Prasad, Anamika 1979. "Development of user interface for numerical limit analysis of geotechnical stability problems." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/85751.

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28

Tin, Suk-man. "The application of probability limit theorems to problems in DNA sequence analysis /." [Hong Kong] : University of Hong Kong, 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13637708.

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29

Assainova, Olga. "On the semiclassical limit of the defocusing Davey-Stewartson II equation." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCK075/document.

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La méthode de diffusion inverse est la plus efficace dans la théorie des systèmes intégrables. Introduite dans les années soixantes, d'importants résultats ont été obtenus pour les problèmes de dimension 1+1 et notamment sur l'interaction de solitons. Depuis quelques années, l'intérêt est porté sur des problèmes de dimensions supérieures comme les équations de Davey-Sterwartson, une généralisation de l'équation intégrable de Schrödinger cubique non linéaire en dimension 1+1. Des études numériques en limite semi-classique de l'équation de Davey-Stewartson II (DSII) défocalisant, font apparaître
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Macdonald, Jeremy. "Algorithmic problems in limits of free and hyperbolic groups." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106347.

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We prove two theorems regarding the algorithmic theory of groups. First, that the compressed word problem in every finitely generated fully residually free group can be decided in polynomial time. As a corollary, the word problem in the automorphism group of such a group has a polynomial time solution. Second, for any torsion-free hyperbolic group H and any group G that is finitely generated and fully residually H, we construct a finite collection of homomorphisms, at least one of which is injective, from G to groups obtained from H by extensions of centralizers. As corollaries, we obtain an
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Williams, Madison R. "Structural Limits of Liberal Neutrality: Understanding Problems for Sustainabiity." Scholarship @ Claremont, 2014. http://scholarship.claremont.edu/scripps_theses/421.

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Liberalism is a political philosophy that is “committed in the strongest possible way to individual rights, and, almost as a deduction from this, to a rigorously neutral state” (Walzer 99). It takes its “constitutive morality” to be a “theory of equality that requires official neutrality amongst theories of what is valuable in life” (Dworkin 203). For this reason, some theorists say Liberalism and the idea of environmental sustainability are not in conflict with one another. According to Mike Mills, because the commitment to neutrality means there is “no given set of policies associated” with
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32

Lincke, Thomas Robert. "Exploring the computational limits of large exhaustive search problems." [S.l. : s.n.], 2002. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=14701.

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33

Hafiene, Yosra. "Continuum limits of evolution and variational problems on graphs." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMC254/document.

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L’opérateur du p-Laplacien non local, l’équation d’évolution et la régularisation variationnelle associées régies par un noyau donné ont des applications dans divers domaines de la science et de l’ingénierie. En particulier, ils sont devenus des outils modernes pour le traitement massif des données (y compris les signaux, les images, la géométrie) et dans les tâches d’apprentissage automatique telles que la classification. En pratique, cependant, ces modèles sont implémentés sous forme discrète (en espace et en temps, ou en espace pour la régularisation variationnelle) comme a
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34

FARFAN, ALDO DURAND. "APPLICATIONS OF LIMIT ANALYSIS TO GEOTECHNICAL PROBLEMS MODELLED AS CONVENTIONAL AND COSSERAT CONTINUA." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2000. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=2000@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>O presente trabalho trata da aplicação da análise limite numérica (ALN) a problemas geotécnicos. Os meios (solo ou rocha) são considerados como contínuos convencionais e como contínuos de Cosserat. Da aplicação da formulação mista da análise limite e da discretização do meio por uma malha de elementos finitos é obtido um problema de programação matemática (PM). A aplicação desta metodologia nos contínuos de Cosserat (2D) fornece problemas de programação linear (PL) e nos contínuos convencionais (2D e 3D), problemas de prog
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Igbida, Noureddine. "Limite singuliere de problemes d'evolution non-lineaires." Besançon, 1997. http://www.theses.fr/1997BESA2024.

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Outre l'etude de l'existence de solutions auto-similaires pour des equations de type barenblatt, la partie principale de ce travail concerne la limite singuliere de problemes d'evolution de type u#t = #p(|u|#m#-#1u) + g(. , u) sur (0,t) x , u(0,. ) = u#0(. ) 0 sur , avec des conditions au bord (0,t) x , lorsque le parametre m tend vers l'infini et 1 < p < est fixe. Dans le cas g 0 et p = 2, le probleme est completement resolu et on sait que si la donnee initiale u#0 prend ses valeurs dans -1, +1, alors la solution u#m(t) tend vers u#0 dans l#1(). Mais, la situation est tres differente si la do
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36

Sedrakyan, Hayk. "Comportement limite des systèmes singuliers et les limites de fonctions valeur en contrôle optimal." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066681/document.

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Cette thèse se compose de deux parties principales. Dans la première partie, le Chapitre 3 est consacré à l'étude du comportement limite d'un système contrôlé singulièrement perturbé avec deux variables d'état qui sont faiblement couplées. Afin de prouver notre résultat d'approximation, nous utilisons la méthode de moyennisation et un résultat récent sur le contrôle nonexpansif. La principale nouveauté de notre approche est de permettre la dynamique limite de dépendre de l'état initial du système rapide. Notons que dans la littérature, le comportement limite d'un tel système a été généralement
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Kreacic, Eleonora. "Some problems related to the Karp-Sipser algorithm on random graphs." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:3b2eb52a-98f5-4af8-9614-e4909b8b9ffa.

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We study certain questions related to the performance of the Karp-Sipser algorithm on the sparse Erdös-Rényi random graph. The Karp-Sipser algorithm, introduced by Karp and Sipser [34] is a greedy algorithm which aims to obtain a near-maximum matching on a given graph. The algorithm evolves through a sequence of steps. In each step, it picks an edge according to a certain rule, adds it to the matching and removes it from the remaining graph. The algorithm stops when the remining graph is empty. In [34], the performance of the Karp-Sipser algorithm on the Erdös-Rényi random graphs G(n,M = [
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Hausknost, Daniel. "The limits to change : liberal democracy and the problem of political agency." Thesis, Keele University, 2011. http://eprints.keele.ac.uk/3832/.

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This thesis explores the limits to purposive change in liberal democracies. Its aim is to provide new analytical tools and concepts to understand better the basis of liberal democracy’s legitimacy, the mechanisms and limitations of political agency at work in it, and the ways in which societal change is delimited and channelled in what is today the most dominant form of political order. The thesis contains three conceptual innovations. The first concerns the nature of liberal democracy, which is shown to involve an ‘epistemic’ dimension of legitimacy on which the system’s stability relies. Thi
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Marko, Roland [Verfasser]. "On Approximability, Convergence, and Limits of CSP Problems / Roland Markó." Bonn : Universitäts- und Landesbibliothek Bonn, 2016. http://d-nb.info/1122193858/34.

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40

Antibi, André. "Etude sur l'enseignement de methodes de demonstration, enseignement de la notion de limite : reflexions, propositions." Toulouse 3, 1988. http://www.theses.fr/1988TOU30139.

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41

Söhl, Jakob. "Central limit theorems and confidence sets in the calibration of Lévy models and in deconvolution." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2013. http://dx.doi.org/10.18452/16732.

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Zentrale Grenzwertsätze und Konfidenzmengen werden in zwei verschiedenen, nichtparametrischen, inversen Problemen ähnlicher Struktur untersucht, und zwar in der Kalibrierung eines exponentiellen Lévy-Modells und im Dekonvolutionsmodell. Im ersten Modell wird eine Geldanlage durch einen exponentiellen Lévy-Prozess dargestellt, Optionspreise werden beobachtet und das charakteristische Tripel des Lévy-Prozesses wird geschätzt. Wir zeigen, dass die Schätzer fast sicher wohldefiniert sind. Zu diesem Zweck beweisen wir eine obere Schranke für Trefferwahrscheinlichkeiten von gaußschen Zufallsfeld
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42

Pawilowski, Boris. "Limite de champ moyen pour des modèles discrets et équation de Schrödinger non linéaire discrète." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S163.

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Dans une série de travaux Zied Ammari et Francis Nier ont développé des méthodes pour étudier la dynamique de champ moyen bosonique pour des états quantiques généraux pouvant présenter des corrélations. Ils ont obtenu des formules pour décrire la dynamique des corrélations, ou plus généralement des matrices densité réduites d'ordre arbitraire. Cette thématique a été largement développée ces dernières années. Norbert Mauser en a été un des contributeurs, ainsi que sur la notion de mesure de Wigner qui est la clé de l'analyse développée par Z. Ammari et F. Nier. En général, il est admis que l'as
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43

Viñoles, Serra Mireia. "Dynamics of Two Neuron Cellular Neural Networks." Doctoral thesis, Universitat Ramon Llull, 2011. http://hdl.handle.net/10803/9154.

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Les xarxes neuronals cel·lulars altrament anomenades CNNs, són un tipus de sistema dinàmic que relaciona diferents elements que s'anomenen neurones via unes plantilles de paràmetres. Aquest sistema queda completament determinat coneixent quines són les entrades a la xarxa, les sortides i els paràmetres o pesos. En aquest treball fem un estudi exhaustiu sobre aquest tipus de xarxa en el cas més senzill on només hi intervenen dues neurones. Tot i la simplicitat del sistema, veurem que pot tenir una dinàmica molt rica. <br/><br/>Primer de tot, revisem l'estabilitat d'aquest sistema des de dos pun
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Spielmann, Jérôme. "Generalized Ornstein-Uhlenbeck Processes in Ruin Theory." Thesis, Angers, 2019. http://www.theses.fr/2019ANGE0066.

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Cette thèse contribue à l'étude des processus d’Ornstein-Uhlenbeck généralisés (GOU) et de leurs applications en théorie de la ruine. Les processus GOU, qui sont les solutions de certaines équations différentielles stochastiques linéaires ont été introduits en théorie de la ruine par Paulsen en 1993 en tant que modèles pour le capital d’une assurance soumise au risque de marché. En général, ces processus ont été choisis comme modèles de manière à priori. La première et principale contribution de cette thèse est de montrer que les processus GOU apparaissent de manière naturelle comme limites fa
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Wang, Xiaojun. "Well-posedness results for a class of complex flow problems in the high Weissenberg number limit." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/27669.

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For simple fluids, or Newtonian fluids, the study of the Navier-Stokes equations in the high Reynolds number limit brings about two fundamental research subjects, the Euler equations and the Prandtl's system. The consideration of infinite Reynolds number reduces the Navier-Stokes equations to the Euler equations, both of which are dealing with the entire flow region. Prandtl's system consists of the governing equations of the boundary layer, a thin layer formed at the wall boundary where viscosity cannot be neglected. In this dissertation, we investigate the upper convected Maxwell(UCM) mod
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錢匡裕 and Hong-yu Chin. "Defect sensitivity and resolvability limits in positron-lifetime spectroscopy." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31225822.

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Chin, Hong-yu. "Defect sensitivity and resolvability limits in positron-lifetime spectroscopy /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B24728913.

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48

Girón, Lozano Carlos Alberto. "Epílogo terrestre: El cuerpo como problema en la filosofía del límite." Doctoral thesis, Universitat Pompeu Fabra, 2016. http://hdl.handle.net/10803/396279.

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Este trabajo aborda la propuesta filosófica de Eugenio Trías, la filosofía del límite, desde lo que parece ser una piedra desechada por la misma: el cuerpo. Es este concepto el que nos sirve de cuña para entrar en temas como la singularidad, la noción de símbolo en su relación con la producción filosófica y la muerte. Se trata de un diálogo entre problemas clásicos que se derivan de la consideración del cuerpo y la propuesta del filósofo barcelonés. Dicha operación nos permite abrir nuevos horizontes indagando en las fuentes de las que bebe la filosofía del límite y que no siempre resultan evi
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Lippoth, Friedrich-Matthias [Verfasser]. "Singular limits and maximally continued solutions of moving boundary problems / Friedrich-Matthias Lippoth." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover, 2010. http://d-nb.info/1004973764/34.

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Noel, Jonathan A. "Extremal combinatorics, graph limits and computational complexity." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:8743ff27-b5e9-403a-a52a-3d6299792c7b.

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This thesis is primarily focused on problems in extremal combinatorics, although we will also consider some questions of analytic and algorithmic nature. The d-dimensional hypercube is the graph with vertex set {0,1}<sup>d</sup> where two vertices are adjacent if they differ in exactly one coordinate. In Chapter 2 we obtain an upper bound on the 'saturation number' of Q<sub>m</sub> in Q<sub>d</sub>. Specifically, we show that for m &ge; 2 fixed and d large there exists a subgraph G of Q<sub>d</sub> of bounded average degree such that G does not contain a copy of Q<sub>m</sub> but, for every G'
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