Modern Approaches to the Invariant-Subspace Problem
Modern Approaches to the Invariant-Subspace Problem
$142.00
USDOne of the major unsolved problems in operator theory is the fifty-year-old invariant subspace problem, which asks whether every bounded linear operator on a Hilbert space has a nontrivial closed invariant subspace. This book presents some of the major results in the area, including many that were derived within the past few years and cannot be found in other books. Beginning with a preliminary chapter containing the necessary pure mathematical background, the authors present a variety of powerful techniques, including the use of the operator-valued Poisson kernel, various forms of the functional calculus, Hardy spaces, fixed point theorems, minimal vectors, universal operators and moment sequences. The subject is presented at a level accessible to postgraduate students, as well as established researchers. It will be of particular interest to those who study linear operators and also to those who work in other areas of pure mathematics.
- Gives the most recent results in the area of invariant subspaces
- Relatively self-contained and accessible to beginning researchers
- Summarises standard background results in analysis
Reviews & endorsements
"The book is well organized and very clearly written. Every chapter ends with short historical notes and a number of exercises. Many of the presented results appear for the fist time in book form; some proofs are simplified by the authors compared with their original versions. All this makes this book a valuable resource for anyone working in operator theory or functional analysis."
Sergei M. Shimorin, Mathematical Reviews
"I think this is a very useful book which will serve as a good source for a rich variety of methods that have been developed for proving positive results on
the ISP. Moreover, there is much material in the book which is of interest beyond
its application to the ISP. The book should be of interest to analysts in general as well as being an essential source for study of the ISP."
SANDY DAVIE, University of Edinburgh for SIAM Review
Product details
December 2011Adobe eBook Reader
9781139120128
0 pages
0kg
4 b/w illus. 65 exercises
This ISBN is for an eBook version which is distributed on our behalf by a third party.
Table of Contents
- Introduction
- 1. Background
- 2. The operator-valued Poisson kernel and its applications
- 3. Properties (An,m) and factorization of integrable functions
- 4. Polynomially bounded operators with rich spectrum
- 5. Beurling algebras
- 6. Applications of a fixed-point theorem
- 7. Minimal vectors
- 8. Universal operators
- 9. Moment sequences and binomial sums
- 10. Positive and strictly-singular operators
- Bibliography
- Index.
