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Singular Coverings of Toposes

Singular Coverings of Toposes
Author: Marta Bunge
Publisher: Springer
Total Pages: 229
Release: 2007-01-19
Genre: Mathematics
ISBN: 3540363602

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This volume presents a self-contained theory of certain singular coverings of toposes, including branched coverings. This book is distinguished from classical treatments of the subject by its unexpected connection with a topic from functional analysis, namely, distributions. Although primarily aimed at topos theorists, this book may also be used as a textbook for advanced graduate courses introducing topos theory with an emphasis on geometric applications.


Evolution Algebras and Their Applications

Evolution Algebras and Their Applications
Author: Jianjun Paul Tian
Publisher: Springer Science & Business Media
Total Pages: 136
Release: 2008
Genre: Mathematics
ISBN: 3540742832

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Behind genetics and Markov chains, there is an intrinsic algebraic structure. It is defined as a type of new algebra: as evolution algebra. This concept lies between algebras and dynamical systems. Algebraically, evolution algebras are non-associative Banach algebras; dynamically, they represent discrete dynamical systems. Evolution algebras have many connections with other mathematical fields including graph theory, group theory, stochastic processes, dynamical systems, knot theory, 3-manifolds, and the study of the Ihara-Selberg zeta function. In this volume the foundation of evolution algebra theory and applications in non-Mendelian genetics and Markov chains is developed, with pointers to some further research topics.


Tutorials in Mathematical Biosciences IV

Tutorials in Mathematical Biosciences IV
Author: Avner Friedman
Publisher: Springer
Total Pages: 215
Release: 2008-04-26
Genre: Mathematics
ISBN: 3540743316

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This book offers an introduction to fast growing research areas in evolution of species, population genetics, ecological models, and population dynamics. It reviews the concept and methodologies of phylogenetic trees, introduces ecological models, examines a broad range of ongoing research in population dynamics, and deals with gene frequencies under the action of migration and selection. The book features computational schemes, illustrations, and mathematical theorems.


Weighted Littlewood-Paley Theory and Exponential-Square Integrability

Weighted Littlewood-Paley Theory and Exponential-Square Integrability
Author: Michael Wilson
Publisher: Springer Science & Business Media
Total Pages: 233
Release: 2008
Genre: Mathematics
ISBN: 3540745823

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Littlewood-Paley theory is an essential tool of Fourier analysis, with applications and connections to PDEs, signal processing, and probability. It extends some of the benefits of orthogonality to situations where orthogonality doesn’t really make sense. It does so by letting us control certain oscillatory infinite series of functions in terms of infinite series of non-negative functions. Beginning in the 1980s, it was discovered that this control could be made much sharper than was previously suspected. The present book tries to give a gentle, well-motivated introduction to those discoveries, the methods behind them, their consequences, and some of their applications.


Value-Distribution of L-Functions

Value-Distribution of L-Functions
Author: Jörn Steuding
Publisher: Springer
Total Pages: 320
Release: 2007-05-26
Genre: Mathematics
ISBN: 3540448225

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These notes present recent results in the value-distribution theory of L-functions with emphasis on the phenomenon of universality. Universality has a strong impact on the zero-distribution: Riemann’s hypothesis is true only if the Riemann zeta-function can approximate itself uniformly. The text proves universality for polynomial Euler products. The authors’ approach follows mainly Bagchi's probabilistic method. Discussion touches on related topics: almost periodicity, density estimates, Nevanlinna theory, and functional independence.


Simplicial Complexes of Graphs

Simplicial Complexes of Graphs
Author: Jakob Jonsson
Publisher: Springer
Total Pages: 376
Release: 2007-12-10
Genre: Mathematics
ISBN: 3540758593

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A graph complex is a finite family of graphs closed under deletion of edges. Graph complexes show up naturally in many different areas of mathematics. Identifying each graph with its edge set, one may view a graph complex as a simplicial complex and hence interpret it as a geometric object. This volume examines topological properties of graph complexes, focusing on homotopy type and homology. Many of the proofs are based on Robin Forman's discrete version of Morse theory.


Forward-Backward Stochastic Differential Equations and their Applications

Forward-Backward Stochastic Differential Equations and their Applications
Author: Jin Ma
Publisher: Springer
Total Pages: 285
Release: 2007-04-24
Genre: Mathematics
ISBN: 3540488316

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This volume is a survey/monograph on the recently developed theory of forward-backward stochastic differential equations (FBSDEs). Basic techniques such as the method of optimal control, the 'Four Step Scheme', and the method of continuation are presented in full. Related topics such as backward stochastic PDEs and many applications of FBSDEs are also discussed in detail. The volume is suitable for readers with basic knowledge of stochastic differential equations, and some exposure to the stochastic control theory and PDEs. It can be used for researchers and/or senior graduate students in the areas of probability, control theory, mathematical finance, and other related fields.


Entropy Methods for the Boltzmann Equation

Entropy Methods for the Boltzmann Equation
Author: Fraydoun Rezakhanlou
Publisher: Springer
Total Pages: 122
Release: 2007-12-22
Genre: Mathematics
ISBN: 3540737057

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Featuring updated versions of two research courses held at the Centre Émile Borel in Paris in 2001, this book describes the mathematical theory of convergence to equilibrium for the Boltzmann equation and its relation to various problems and fields. It also discusses four conjectures for the kinetic behavior of the hard sphere models and formulates four stochastic variations of this model, also reviewing known results for these.


Existence and Regularity Properties of the Integrated Density of States of Random Schrödinger Operators

Existence and Regularity Properties of the Integrated Density of States of Random Schrödinger Operators
Author: Ivan Veselic
Publisher: Springer Science & Business Media
Total Pages: 151
Release: 2008-01-02
Genre: Mathematics
ISBN: 3540726896

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This book describes in detail a quantity encoding spectral feature of random operators: the integrated density of states or spectral distribution function. It presents various approaches to the construction of the integrated density of states and the proof of its regularity properties. The book also includes references to and a discussion of other properties of the IDS as well as a variety of models beyond those treated in detail here.


Calculus of Variations and Nonlinear Partial Differential Equations

Calculus of Variations and Nonlinear Partial Differential Equations
Author: Luigi Ambrosio
Publisher: Springer
Total Pages: 213
Release: 2007-12-10
Genre: Mathematics
ISBN: 354075914X

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This volume provides the texts of lectures given by L. Ambrosio, L. Caffarelli, M. Crandall, L.C. Evans, N. Fusco at the Summer course held in Cetraro, Italy in 2005. These are introductory reports on current research by world leaders in the fields of calculus of variations and partial differential equations. Coverage includes transport equations for nonsmooth vector fields, viscosity methods for the infinite Laplacian, and geometrical aspects of symmetrization.