Ambrosetti, Antonio, Malchiodi, Andrea

Perturbation Methods and Semilinear Elliptic Problems on R^n

Series: Progress in Mathematics, Vol. 240
2005, Approx. 200 p., Hardcover
ISBN: 3-7643-7321-0

About this book

This monograph addresses perturbation methods in critical point theory. It particularly emphasizes applications such as semilinear elliptic problems on R^n, bifurcation from the essential spectrum, the prescribed scalar curvature problem, nonlinear Schroedinger equations, and singularly perturbed elliptic problems in domains.

Table of contents

Preface.- Examples and Motivations.- Perturbation in Critical Point Theory.- Bifurcation from the Essential Spectrum.- Subcritical Problems.- Problems with Critical Exponent.- The Yamabe Problem.- Problems in Conformal Geometry.- NLS.- Singularly Perturbed Neumann Problems.- Concentration at Spheres.- Bibliography.- Index.

Antsaklis, Panos J., Michel, Anthony M.

Linear Systems

1st ed. 1997. Corr. 2nd printing, 2005, Approx. 685 p. 86 illus., Hardcover
ISBN: 0-8176-4434-2

About this textbook

"There are three words that characterize this work: thoroughness, completeness and clarity. The authors are congratulated for taking the time to write an excellent linear systems textbook! cThe authors have used their mastery of the subject to produce a textbook that very effectively presents the theory of linear systems as it has evolved over the last thirty years. The result is a comprehensive, complete and clear exposition that serves as an excellent foundation for more advanced topics in system theory and control."

?IEEE Transactions on Automatic Control

"In assessing the present book as a potential textbook for our first graduate linear systems course, I find it compares very favorably with some of the excellent texts already availablec. Antsaklis and Michel have contributed an expertly written and high quality textbook to the field and are to be congratulatedc. Because of its mathematical sophistication and completeness the present book is highly recommended for use, both as a textbook as well as a reference."

?Automatica

Linear systems theory plays a broad and fundamental role in electrical, mechanical, chemical and aerospace engineering, communications, and signal processing. A thorough introduction to systems theory with emphasis on control is presented in this self-contained textbook.

The book examines the fundamental properties that govern the behavior of systems by developing their mathematical descriptions. Linear time-invariant, time-varying, continuous-time, and discrete-time systems are covered. Rigorous development of classic and contemporary topics in linear systems, as well as extensive coverage of stability and polynomial matrix/fractional representation, provide the necessary foundation for further study of systems and control.

Linear Systems is written as a textbook for a challenging one-semester graduate course; the bookfs flexible coverage and self-contained presentation also make it an excellent reference guide or self-study manual.

For a treatment of linear systems that focuses primarily on the time-invariant case using streamlined presentation of the material with less formal and more intuitive proofs, see the authorsf companion book entitled A Linear Systems Primer.

Table of contents

Preface.- Mathematical Descriptions of Systems.- Response of Linear Systems.- Controllability and Observability.- State Feedback and State Observers.- Realization Theory and Algorithms.- Stability.- Polynomial Matrix Descriptions and Matrix Fractional Descriptions of Systems.- Appendix: Numerical Considerations.- Bibliography.- Index

Marchenko, Vladimir A., Khruslov, Evgueni Ya.

Homogenization of Partial Differential Equations

Series: Progress in Mathematical Physics, Preliminary entry 1200
2006, Approx. 450 p., Hardcover
ISBN: 0-8176-4351-6

About this book

Homogenization is a method for modelling processes in complex structures. These processes are far too complex for analytic and numerical methods and are best described by PDEs with rapidly oscillating coefficients - a technique that has become increasingly important in the last three decades due to its multiple applications in the areas of optimization, radiophysics, filtration theory, rheology, elasticity theory, and other domains of mechanics, physics, and technology.

The present monograph is a comprehensive study of homogenization problems describing various physical processes in micro-inhomogeneous media. From the technical viewpoint the work focuses on the construction of nonstandard models for media characterized by several small-scale parameters (multiscale models). A variety of techniques are used --- specifically functional analysis, the spectral theory for differential operators, the Laplace transform, and, most importantly, a new variational PDE method for studying the asymptotic behavior of solutions of stationary boundary value problems. This new method can be applied to a wide variety of problems.

Key topics in this systematic exposition include asymptotic analysis, Dirichlet- and Neumann-type boundary value problems, differential equations with rapidly oscillating coefficients, homogenization, homogenized and non-local models. Along with complete proofs of all main results, numerous examples of typical structures of micro-inhomogeneous media with their corresponding homogenized models are provided.

Applied mathematicians, advanced-level graduate students, physicists, engineers, and specialists in mechanics will benefit from this monograph, which may be used in the classroom or as a comprehensive reference text.

Table of contents

Introduction
Chapter 1. The Dirichlet boundary value problem in strongly perforated domains
1.1 Method of orthogonal projections and abstract scheme of the Dirichlet boundary problem in strongly perforated domains
1.2 Asymptotic behavior of solutions of the Dirichlet boundary value problem in strongly perforated domains
1.3 The Dirichlet boundary value problem in domains in random strongly perforated domains
Chapter 2. The Dirichlet boundary value problem in domains with complex boundary
2.1 Necessary and sufficient conditions for convergence of solutions of the Dirichlet boundary value problem
2.2 Asymptotic behavior of solutions of variational problems for non-quadratic functionals in domains with complex boundary
2.3 Asymptotic behavior of the potential of electrostatic field in weakly non-linear medium with thin perfectly conducting Filaments
Chapter 3. Strongly connected domains
3.1 Preliminary consideration
3.2 Sequences of domains satisfying the condition of strong connectedness
3.3 Sequences of strongly connected domains of decreasing volume
Chapter 4. The Neumann boundary value problems in strongly connected domains
4.1 Asymptotic behavior of the Neumann boundary value problems in strongly connected domains
4.2 Calculation of the conductivity tensor for structures close to periodic
4.3 Asymptotic behavior of the Neumann boundary value problems in weakly connected domains
4.4 Asymptotic behavior of the Neumann boundary value problems in domains with traps
4.5 Asymptotic behavior of the Neumann boundary value problems in strongly connected domains of decreasing volume
Chapter 5. Non-stationary problems and spectral problems
5.1 Asymptotic behavior of solutions of a non-stationary problem in tube domains
5.2 Asymptotic behavior of solutions of the Dirichlet boundary value problems in varying strongly perforated domains
5.3 Asymptotic behavior of eigenvalues of boundary value problems in strongly perforated domains
Chapter 6. Differential equations with rapidly oscillating coefficients
6.1 Asymptotic behavior of solutions of differential equations with coefficients, which are not uniformly elliptic
6.2 Examples of particular realizations of the homogenized diffusion model
6.3 Asymptotic behavior of solutions of differential equations with coefficients, which are not uniformly bounded
6.4 Example of a non-local homogenized model
6.5 Homogenized heat conductivity model for a medium containing inclusions with high specific heat
Chapter 7. Homogenized conjugation conditions
7.1 The Dirichlet problem. The general case of surface distribution of sets
7.2 The Neumann problem. The general case of surface distribution of sets
7.3 Deflection of elastic plates with small inclusions
7.4 Stationary Josephson effect.
Bibliography

Pietsch, Albrecht

History of Banach Spaces and Linear Operators

2005, Approx. 880 p. 82 illus., Hardcover
ISBN: 0-8176-4367-2

About this book

Named for one of the great mathematicians of the twentieth century, Banach spaces figure prominently in the study of functional analysis, having applications to integral and differential equations, approximation theory, harmonic analysis, convex geometry, numerical mathematics, analytic complexity, and probability theory. This work, written by a distinguished specialist in functional analysis, is devoted to a comprehensive treatment of the history of Banach spaces and (abstract bounded) linear operators. While other comprehensive texts on Banach spaces focus on developments before 1950, this one is mainly devoted to the second half of the twentieth century.

Banach space theory is presented as a part of a broad mathematics context, using tools from such areas as set theory, topology, algebra, combinatorics, probability theory, logic, etc. Equal emphasis is given to both spaces and operators. Numerous examples and counterexamples elucidate the scope of the underlying concepts. As a stimulus for further research, the text also contains many problems which have not been previously solved.

The book may serve as a reference and introduction for graduate students and researchers who want to learn Banach space theory with some historical flavor

Table of contents

Preface.- Acknowledgements.- Introduction.- The Birth of Banach Spaces.- Historical Roots and Basic Results.- Weak Topologies.- Classical Banach Spaces.- Basic Results from the Post-Banach Period.- Modern Banach Space Theory ? Selected Topics.- Miscellaneous Topics.- Mathematics is Made by Mathematicians.- Chronology.- Quotations.- Bibliography.- Index.

Alpay, Daniel; Gohberg, Israel (Eds.)

The State Space Method
Generalizations and Applications

Series: Operator Theory: Advances and Applications, Vol. 161
2005, Approx. 285 p., Hardcover
ISBN: 3-7643-7370-9

About this book

The present volume contains a collection of essays representing some of the recent advances in the state space method. Methods covered include noncommutative systems theory, new aspects of the theory of discrete systems, discrete analogs of canonical systems, and new applications to the theory of Bezoutiants and convolution equations.

Table of contents

Editorial Introduction.- Discrete Analogs of Canonical Systems with Pseudo-exponential Potential. Definitions and Formulas for the Special Matrix Functions.- Matrix-J-unitary Noncommutative Rational Formal Power Series.- State/Signal Linear Time-invariant Systems Theory, Part I: Discrete Time Systems.- Conservative Structured Noncommutative Multidimensional Linear Systems.- The Bezout Integral Operator: Main Property and Underlying Abstract Scheme


Seade, Jose

On the Topology of Isolated Singularities in Analytic Spaces

Series: Progress in Mathematics, Vol. 241
2005, Approx. 280 p., Hardcover
ISBN: 3-7643-7322-9

About this book

The aim of this book is to give an overview of selected topics on the topology of singularities, with emphasis on its relations to other branches of geometry and topology. The first chapters are mostly devoted to complex singularities and a myriad of results spread in a vast literature, including recent research. The second part of the book studies real analytic singularities which arise from the topological and geometric study of holomorphic vector fields and foliations. In the low dimensional case these turn out to be related to fibred links in the 3-sphere defined by meromorphic functions.

Table of contents

Preface.- Introduction.- A Fast Trip through the Classical Theory.- Motions in Plane Geometry and the 3-Dimensional Brieskorn Manifolds.- 3-Dimensional Lie Groups and Surface Singularities.- Within the Realm of the General Index Theorem.- On the Geometry and Topology of Quadrics in CP^n.- Real Singularities and Complex Geometry.- Real Singularities with a Milnor Fibration.- Real Singularities and Open Book Decompositions of the 3-Sphere.- Bibliography.- Index.