Convergence of Complementable Operators

Fuente: arXiv
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Main Authors: Naik, Sachin Manjunath, Johnson, P. Sam
Format: Preprint
Published: 2024
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author Naik, Sachin Manjunath
Johnson, P. Sam
author_facet Naik, Sachin Manjunath
Johnson, P. Sam
contents Complementable operators extend classical matrix decompositions, such as the Schur complement, to the setting of infinite-dimensional Hilbert spaces, thereby broadening their applicability in various mathematical and physical contexts. This paper focuses on the convergence properties of complementable operators, investigating when the limit of sequence of complementable operators remains complementable. We also explore the convergence of sequences and series of powers of complementable operators, providing new insights into their convergence behavior. Additionally, we examine the conditions under which the set of complementable operators is the subset of set of boundary points of the set of non-complementable operators with respect to the strong operator topology. The paper further explores the topological structure of the subset of complementable operators, offering a characterization of its closed subsets.
format Preprint
id arxiv_https___arxiv_org_abs_2411_15636
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Convergence of Complementable Operators
Naik, Sachin Manjunath
Johnson, P. Sam
Functional Analysis
47A08, 47A64, 47B65, 47A58
Complementable operators extend classical matrix decompositions, such as the Schur complement, to the setting of infinite-dimensional Hilbert spaces, thereby broadening their applicability in various mathematical and physical contexts. This paper focuses on the convergence properties of complementable operators, investigating when the limit of sequence of complementable operators remains complementable. We also explore the convergence of sequences and series of powers of complementable operators, providing new insights into their convergence behavior. Additionally, we examine the conditions under which the set of complementable operators is the subset of set of boundary points of the set of non-complementable operators with respect to the strong operator topology. The paper further explores the topological structure of the subset of complementable operators, offering a characterization of its closed subsets.
title Convergence of Complementable Operators
topic Functional Analysis
47A08, 47A64, 47B65, 47A58
url https://arxiv.org/abs/2411.15636