The Hardy Space of a Slit Domain

The Hardy Space of a Slit Domain
Author :
Publisher : Springer Science & Business Media
Total Pages : 135
Release :
ISBN-10 : 9783034600989
ISBN-13 : 3034600984
Rating : 4/5 (984 Downloads)

Book Synopsis The Hardy Space of a Slit Domain by : Alexandru Aleman

Download or read book The Hardy Space of a Slit Domain written by Alexandru Aleman and published by Springer Science & Business Media. This book was released on 2010-01-08 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: If H is a Hilbert space and T : H ? H is a continous linear operator, a natural question to ask is: What are the closed subspaces M of H for which T M ? M? Of course the famous invariant subspace problem asks whether or not T has any non-trivial invariant subspaces. This monograph is part of a long line of study of the invariant subspaces of the operator T = M (multiplication by the independent variable z, i. e. , M f = zf )on a z z Hilbert space of analytic functions on a bounded domain G in C. The characterization of these M -invariant subspaces is particularly interesting since it entails both the properties z of the functions inside the domain G, their zero sets for example, as well as the behavior of the functions near the boundary of G. The operator M is not only interesting in its z own right but often serves as a model operator for certain classes of linear operators. By this we mean that given an operator T on H with certain properties (certain subnormal operators or two-isometric operators with the right spectral properties, etc. ), there is a Hilbert space of analytic functions on a domain G for which T is unitarity equivalent to M .


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