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Positive selfadjoint extensions of positive symmetric operators

Tsuyoshi Ando, +1 more
- 01 Jan 1970 - 
- Vol. 22, Iss: 1, pp 65-75
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This article is published in Tohoku Mathematical Journal.The article was published on 1970-01-01 and is currently open access. It has received 137 citations till now. The article focuses on the topics: Elementary symmetric polynomial & Complete homogeneous symmetric polynomial.

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Extensions of dissipative operators with closable imaginary part

Christoph Fischbacher
- 23 Dec 2020 - 
TL;DR: In this paper, a necessary and sufficient condition for an extension of a dissipative operator to still be dissipative was given, and the conditions for maximally accretive extensions of strictly positive symmetric operators and maximally dissipative extensions of a highly singular first-order operator on the interval were described.
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Замкнутые секториальные формы и однопараметрические полугруппы сжатий@@@Closed sectorial forms and one-parameter contraction semigroups

Юрий Моисеевич Арлинский, +1 more
Book ChapterDOI

On a Kreĭn Criterion

Adrian Sandovici
TL;DR: In this article, the set of all nonnegative self-adjoint extensions of a nonnegative linear relation (multi-valued linear operator) is described by using a partial order defined on a set of the corresponding quadratic forms.
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An interview with Tsuyoshi Ando

Richard A. Brualdi, +1 more
- 28 Nov 2013 - 
TL;DR: This paper conducted an interview with Professor Tsuyoshi Ando via email and presented Professor Ando's responses to several questions we gave him regarding his education and life as a mathematics teacher.
Journal ArticleDOI

Classical Self-Adjoint Extension Schemes

- 05 Jul 2022 - 
TL;DR: In this article , the authors present the two classical self-adjoint extension theories a la von Neumann and a la Kreı̆n, Višik, and Birman, where the emphasis is rather put on the abstract boundary value problem.
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Book

Functional analysis

Frigyes Riesz
Journal ArticleDOI

Theory of Linear Operators in Hilbert Space. By N. I. Akhiezer and I. M. Glazman. Vol. 1, 50s. Vol. 2, 60a. 1964. (Constable)

F. Smithies
- 01 Dec 1966 -