Invariant Subspaces and Allied Topics

Invariant Subspaces and Allied Topics PDF Author: Bhuri Singh Yadav
Publisher:
ISBN:
Category : Functional analysis
Languages : en
Pages : 188

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Book Description

Invariant Subspaces and Allied Topics

Invariant Subspaces and Allied Topics PDF Author: Bhuri Singh Yadav
Publisher:
ISBN:
Category : Functional analysis
Languages : en
Pages : 188

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Book Description


Spectral Theory of Dynamical Systems

Spectral Theory of Dynamical Systems PDF Author: Mahendra Nadkarni
Publisher: Springer Nature
ISBN: 9811562253
Category : Mathematics
Languages : en
Pages : 223

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Book Description
This book discusses basic topics in the spectral theory of dynamical systems. It also includes two advanced theorems, one by H. Helson and W. Parry, and another by B. Host. Moreover, Ornstein’s family of mixing rank-one automorphisms is given with construction and proof. Systems of imprimitivity and their relevance to ergodic theory are also examined. Baire category theorems of ergodic theory, scattered in literature, are discussed in a unified way in the book. Riesz products are introduced and applied to describe the spectral types and eigenvalues of rank-one automorphisms. Lastly, the second edition includes a new chapter “Calculus of Generalized Riesz Products”, which discusses the recent work connecting generalized Riesz products, Hardy classes, Banach's problem of simple Lebesgue spectrum in ergodic theory and flat polynomials.

Composition Operators on Function Spaces

Composition Operators on Function Spaces PDF Author: R.K. Singh
Publisher: Elsevier
ISBN: 0080872905
Category : Mathematics
Languages : en
Pages : 327

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Book Description
This volume of the Mathematics Studies presents work done on composition operators during the last 25 years. Composition operators form a simple but interesting class of operators having interactions with different branches of mathematics and mathematical physics.After an introduction, the book deals with these operators on Lp-spaces. This study is useful in measurable dynamics, ergodic theory, classical mechanics and Markov process. The composition operators on functional Banach spaces (including Hardy spaces) are studied in chapter III. This chapter makes contact with the theory of analytic functions of complex variables. Chapter IV presents a study of these operators on locally convex spaces of continuous functions making contact with topological dynamics. In the last chapter of the book some applications of composition operators in isometries, ergodic theory and dynamical systems are presented. An interesting interplay of algebra, topology, and analysis is displayed.This comprehensive and up-to-date study of composition operators on different function spaces should appeal to research workers in functional analysis and operator theory, post-graduate students of mathematics and statistics, as well as to physicists and engineers.

Classification and Orbit Equivalence Relations

Classification and Orbit Equivalence Relations PDF Author: Greg Hjorth
Publisher: American Mathematical Soc.
ISBN: 0821820028
Category : Mathematics
Languages : en
Pages : 217

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Book Description
Actions of Polish groups are ubiquitous in mathematics. In certain branches of ergodic theory and functional analysis, one finds a systematic study of the group of measure-preserving transformations and the unitary group. In logic, the analysis of countable models intertwines with results concerning the actions of the infinite symmetric group. This text develops the theory of Polish group actions entirely from scratch, ultimately presenting a coherent theory of the resulting orbit equivalence classes that may allow complete classification by invariants of an indicated form. The book concludes with a criterion for an orbit equivalence relation classifiable by countable structures considered up to isomorphism. This self-contained volume offers a complete treatment of this active area of current research and develops a difficult general theory classifying a class of mathematical objects up to some relevant notion of isomorphism or equivalence.

Interpolation Spaces and Allied Topics in Analysis

Interpolation Spaces and Allied Topics in Analysis PDF Author: M. Cwikel
Publisher: Springer
ISBN: 354038913X
Category : Mathematics
Languages : en
Pages : 245

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Book Description


Stability of Operators and Operator Semigroups

Stability of Operators and Operator Semigroups PDF Author: Tanja Eisner
Publisher: Birkhäuser
ISBN: 3034601956
Category : Mathematics
Languages : en
Pages : 208

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Book Description
The asymptotic behaviour, in particular "stability" in some sense, is studied systematically for discrete and for continuous linear dynamical systems on Banach spaces. Of particular concern is convergence to an equilibrium with respect to various topologies. Parallels and differences between the discrete and the continuous situation are emphasised.

Spectral Measures and Dynamics: Typical Behaviors

Spectral Measures and Dynamics: Typical Behaviors PDF Author: Moacir Aloisio
Publisher: Springer Nature
ISBN: 3031382897
Category : Science
Languages : en
Pages : 250

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Book Description
This book convenes and deepens generic results about spectral measures, many of them available so far in scattered literature. It starts with classic topics such as Wiener lemma, Strichartz inequality, and the basics of fractal dimensions of measures, progressing to more advanced material, some of them developed by the own authors. A fundamental concept to the mathematical theory of quantum mechanics, the spectral measure relates to the components of the quantum state concerning the energy levels of the Hamiltonian operator and, on the other hand, to the dynamics of such state. However, these correspondences are not immediate, with many nuances and subtleties discovered in recent years. A valuable example of such subtleties is found in the so-called “Wonderland theorem” first published by B. Simon in 1995. It shows that, for some metric space of self-adjoint operators, the set of operators whose spectral measures are singular continuous is a generic set (which, for some, is exotic). Recent works have revealed that, on top of singular continuity, there are other generic properties of spectral measures. These properties are usually associated with a number of different notions of generalized dimensions, upper and lower dimensions, with dynamical implications in quantum mechanics, ergodicity of dynamical systems, and evolution semigroups. All this opens ways to new and instigating avenues of research. Graduate students with a specific interest in the spectral properties of spectral measure are the primary target audience for this work, while researchers benefit from a selection of important results, many of them presented in the book format for the first time.

Isometries in Banach Spaces

Isometries in Banach Spaces PDF Author: Richard J. Fleming
Publisher: CRC Press
ISBN: 1420010204
Category : Mathematics
Languages : en
Pages : 245

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Book Description
A continuation of the authors' previous book, Isometries on Banach Spaces: Vector-valued Function Spaces and Operator Spaces, Volume Two covers much of the work that has been done on characterizing isometries on various Banach spaces. Picking up where the first volume left off, the book begins with a chapter on the Banach-Stone property.

Topological Dynamics and Applications

Topological Dynamics and Applications PDF Author: Robert Ellis
Publisher: American Mathematical Soc.
ISBN: 0821806084
Category : Mathematics
Languages : en
Pages : 348

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Book Description
This book is a very readable exposition of the modern theory of topological dynamics and presents diverse applications to such areas as ergodic theory, combinatorial number theory and differential equations. There are three parts: 1) The abstract theory of topological dynamics is discussed, including a comprehensive survey by Furstenberg and Glasner on the work and influence of R. Ellis. Presented in book form for the first time are new topics in the theory of dynamical systems, such as weak almost-periodicity, hidden eigenvalues, a natural family of factors and topological analogues of ergodic decomposition. 2) The power of abstract techniques is demonstrated by giving a very wide range of applications to areas of ergodic theory, combinatorial number theory, random walks on groups and others. 3) Applications to non-autonomous linear differential equations are shown. Exposition on recent results about Floquet theory, bifurcation theory and Lyapanov exponents is given.

Topological Algebras, Their Applications, and Related Topics

Topological Algebras, Their Applications, and Related Topics PDF Author: Krzysztof Jarosz
Publisher:
ISBN:
Category : Topological algebras
Languages : en
Pages : 422

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Book Description