Direct integral of locally Hilbert spaces

Fuente: arXiv
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Main Authors: Kulkarni, Chaitanya J., Pamula, Santhosh Kumar
Format: Preprint
Published: 2025
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_version_ 1866918115374268416
author Kulkarni, Chaitanya J.
Pamula, Santhosh Kumar
author_facet Kulkarni, Chaitanya J.
Pamula, Santhosh Kumar
contents In this work, we introduce the concept of the direct integral of locally Hilbert spaces. This notion is formulated such that the direct integral of locally Hilbert spaces forms a locally Hilbert space. We then define two classes of locally bounded operators on the direct integral of locally Hilbert spaces namely the class of decomposable locally bounded operators and the class of diagonalizable locally bounded operators. We prove that the set of all decomposable locally bounded operators forms a locally von Neumann algebra, while the set of diagonalizable locally bounded operators forms an abelian von Neumann algebra, and we show that they are commutant of each other.
format Preprint
id arxiv_https___arxiv_org_abs_2508_03407
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Direct integral of locally Hilbert spaces
Kulkarni, Chaitanya J.
Pamula, Santhosh Kumar
Functional Analysis
Operator Algebras
46A03, 46L05, 46A13, 47L40, 46A40
In this work, we introduce the concept of the direct integral of locally Hilbert spaces. This notion is formulated such that the direct integral of locally Hilbert spaces forms a locally Hilbert space. We then define two classes of locally bounded operators on the direct integral of locally Hilbert spaces namely the class of decomposable locally bounded operators and the class of diagonalizable locally bounded operators. We prove that the set of all decomposable locally bounded operators forms a locally von Neumann algebra, while the set of diagonalizable locally bounded operators forms an abelian von Neumann algebra, and we show that they are commutant of each other.
title Direct integral of locally Hilbert spaces
topic Functional Analysis
Operator Algebras
46A03, 46L05, 46A13, 47L40, 46A40
url https://arxiv.org/abs/2508.03407