Topics in Complex Analysis and Operator Theory

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This volume comprises the conference proceedings of the \Winter School in Complex Analysis and Operator Theory", held in Antequera, Malaga, Spain, February 5-9, 2006. This winter school was organized as part of the activities of the Spanish network \Complex Variables, Function Spaces and Operators between them". This network is currently composed by approximately 70 researchers of 14 Spanish universities whose main areas of research are Complex Analysis and Operator Theory and is supported by grants from the Spanish \Ministerio de Educacion y Ciencia" (acciones complementarias MTM2004-21420-E and MTM2006-26627-E). Complex Analysis and Operator Theory are two of the most classical branches of mathematical analysis and they are very closely related. Furthermore, they have close links with others such as Harmonic Analysis, Probability, Functional Analysis and Geometry. The interplay between all these branches of mathematics gives rise to very beautiful results and makes our area of research so nice and alive.

Author(s): Daniel Girela Alvarez, Cristobal Gonzalez Enriquez
Publisher: Universidad de Málaga. UMA
Year: 2007

Language: English
Pages: C, xvi, 162, B

Cover

S Title

TOPICS IN COMPLEX ANALYSIS AND OPERATOR THEORY

Copyright (C) 2007 by Los autores
ISBN: 978-84-9747-174-9

Contents

Preface

List of Participants

Program


Part I Articles

CLASS OF INTEGRAL OPERATORS ON SPACES OF ANALYTIC FUNCTIONS
1. Introduction
2. Some spaces of analytic functions
3. Motivation and Examples
4. Boundedness and Compactness I. Hardy spaces
5. Boundedness and Compactness II. Bergman spaces
6. The bilinear map (f; g) ----> Tgf
7. Similarity to a contraction. A short digression
8. A few remarks about spectrum and invariant subspaces
References

ASYMPTOTIC FORMULAS AND ZERO-DISTRIBUTION OF CERTAIN ENTIRE FUNCTIONS
1. Introduction
2. Functions with zeros on a regular strip
3. Valiron's class
4. Comments on the last Lemma
5. The Balasov class
6. Two solutions
References

DYNAMICS OF LINEAR OPERATORS
1. Hypercyclicity
1.1. Introduction: Hypercyclic and chaotic operators.
1.2. The Hypercyclicity Criterion
2. Frequent hypercyclicity
2.1. Frequently hypercyclic operators.
2.2. The set of frequently hypercyclic vectors.
3. Ergodicity
3.1. Ergodic theoretic methods in linear dynamics.
3.2. Invariant Gaussian measures for linear operators.
3.3. The unimodular eigenvalue criterion.
References

AN ELEMENTARY INTRODUCTION TO CLARK MEASURES
Preface
1. De nition of Clark measures
2. Basic properties of Clark measures
3. Angular derivatives
4. The Aleksandrov operator
5. Composition operators
6. Sarason's theorem: (weak) compactness of C' on L1
7. Shapiro's theorem: when C' in K(H2)?
8. Di erences of composition operators
9. Value distribution results
10. Model spaces, spectral measures and the theorem of Poltoratski
References


Part II Research Problems

SOME OPEN PROBLEMS ON A CLASS OF INTEGRAL OPERATORS ON SPACES OF ANALYTIC FUNCTIONS
References

SOME PROBLEMS ON CARLESON MEASURES FOR BESOV-SOBOLEV SPACES