Product Formulas, Nonlinear Semigroups, and Addition of Unbounded Operators

Product Formulas, Nonlinear Semigroups, and Addition of Unbounded Operators PDF

Author: Paul R. Chernoff

Publisher: American Mathematical Soc.

Published: 1974

Total Pages: 130

ISBN-13: 0821818406

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This work deals with the general theory, both linear and non-linear, of operator semigroup product formulas of the type lim [over] n[right arrow][infinity] F(t/n) [superscript]n = G(t). The principal application is the use of the Trotter-Lie product formula e [superscript]tC = lim [over] n[right arrow][infinity] (e [superscript]t/nA e [superscript]t/nB) [superscript]n to define a generalized addition of semigroup generators, and self-adjoint operators in particular. The properties of generalized addition, both regular and pathological, are discussed.

Methods of Modern Mathematical Physics: Functional analysis

Methods of Modern Mathematical Physics: Functional analysis PDF

Author: Michael Reed

Publisher: Gulf Professional Publishing

Published: 1980

Total Pages: 417

ISBN-13: 0125850506

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"This book is the first of a multivolume series devoted to an exposition of functional analysis methods in modern mathematical physics. It describes the fundamental principles of functional analysis and is essentially self-contained, although there are occasional references to later volumes. We have included a few applications when we thought that they would provide motivation for the reader. Later volumes describe various advanced topics in functional analysis and give numerous applications in classical physics, modern physics, and partial differential equations." --Publisher description.

Semigroups of Operators – Theory and Applications

Semigroups of Operators – Theory and Applications PDF

Author: Jacek Banasiak

Publisher: Springer Nature

Published: 2020-06-12

Total Pages: 446

ISBN-13: 3030460797

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This book features selected and peer-reviewed lectures presented at the 3rd Semigroups of Operators: Theory and Applications Conference, held in Kazimierz Dolny, Poland, in October 2018 to mark the 85th birthday of Jan Kisyński. Held every five years, the conference offers a forum for mathematicians using semigroup theory to discover what is happening outside their particular field of research and helps establish new links between various sub-disciplines of semigroup theory, stochastic processes, differential equations and the applied fields. The book is intended for researchers, postgraduate and senior students working in operator theory, partial differential equations, probability and stochastic processes, analytical methods in biology and other natural sciences, optimisation and optimal control. The theory of semigroups of operators is a well-developed branch of functional analysis. Its foundations were laid at the beginning of the 20th century, while Hille and Yosida’s fundamental generation theorem dates back to the forties. The theory was originally designed as a universal language for partial differential equations and stochastic processes but, at the same time, it started to become an independent branch of operator theory. Today, it still has the same distinctive character: it develops rapidly by posing new ‘internal’ questions and, in answering them, discovering new methods that can be used in applications. On the other hand, it is being influenced by questions from PDE’s and stochastic processes as well as from applied sciences such as mathematical biology and optimal control and, as a result, it continually gathers new momentum. However, many results, both from semigroup theory itself and the applied sciences, are phrased in discipline-specific languages and are hardly known to the broader community.

Nonlinear Evolution Equations

Nonlinear Evolution Equations PDF

Author: Michael G. Crandall

Publisher: Elsevier

Published: 2014-05-10

Total Pages: 266

ISBN-13: 1483269280

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Nonlinear Evolution Equation covers the proceedings of the Symposium by the same title, conducted by the Mathematics Research Center at the University of Wisconsin, Madison on October 17-19, 1977. This book is divided into 13 chapters and begins with reviews of the uniqueness of solution to systems of conservation laws and the computational aspects of Glimm’s method. The next chapters examine the theoretical and practical aspects of Boltzmann, Navier-Stokes, and evolution equations. These topics are followed by discussions of the practical applications of Trotter’s product formula for some nonlinear semigroups and the finite time blow-up in nonlinear problems. The closing chapters deal with a Hamiltonian approach to the K-dV and other equations, along with a variational method for finding periodic solutions of differential equations. This book will prove useful to mathematicians and engineers.

Gibbs Semigroups

Gibbs Semigroups PDF

Author: Valentin A. Zagrebnov

Publisher: Springer Nature

Published: 2019-11-17

Total Pages: 320

ISBN-13: 3030188779

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This book focuses on the theory of the Gibbs semigroups, which originated in the 1970s and was motivated by the study of strongly continuous operator semigroups with values in the trace-class ideal. The book offers an up-to-date, exhaustive overview of the advances achieved in this theory after half a century of development. It begins with a tutorial introduction to the necessary background material, before presenting the Gibbs semigroups and then providing detailed and systematic information on the Trotter-Kato product formulae in the trace-norm topology. In addition to reviewing the state-of-art concerning the Trotter-Kato product formulae, the book extends the scope of exposition from the trace-class ideal to other ideals. Here, special attention is paid to results on semigroups in symmetrically normed ideals and in the Dixmier ideal. By examining the progress made in Gibbs semigroup theory and in extensions of the Trotter-Kato product formulae to symmetrically normed and Dixmier ideals, the book shares timely and valuable insights for readers interested in pursuing these subjects further. As such, it will appeal to researchers, undergraduate and graduate students in mathematics and mathematical physics.

The Cauchy Problem

The Cauchy Problem PDF

Author: Hector O. Fattorini

Publisher: Cambridge University Press

Published: 1983

Total Pages: 664

ISBN-13: 0521302382

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This volume deals with the Cauchy or initial value problem for linear differential equations. It treats in detail some of the applications of linear space methods to partial differential equations, especially the equations of mathematical physics such as the Maxwell, Schrödinger and Dirac equations. Background material presented in the first chapter makes the book accessible to mathematicians and physicists who are not specialists in this area as well as to graduate students.

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Author: Shmuel Kantorovitz

Publisher: Springer Science & Business Media

Published: 2009-10-23

Total Pages: 269

ISBN-13: 0817649352

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Semigroups of Linear Operators and Applications

Semigroups of Linear Operators and Applications PDF

Author: Jerome A. Goldstein

Publisher: Courier Dover Publications

Published: 2017-05-17

Total Pages: 321

ISBN-13: 048681257X

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Advanced graduate-level treatment of semigroup theory explores semigroups of linear operators and linear Cauchy problems. The text features challenging exercises and emphasizes motivation, heuristics, and further applications. 1985 edition.