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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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On $J$-selfadjoint extensions of $J$-symmetric operators
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by Ian Knowles PDF
Proc. Amer. Math. Soc. 79 (1980), 42-44 Request permission

Abstract:

A short proof is given (via the theory of conjugate-linear operators) of the fact that every J-symmetric operator in a Hilbert space $\mathcal {K}$ has a J-selfadjoint extension in $\mathcal {K}$.
References
  • Nelson Dunford and Jacob T. Schwartz, Linear operators. Part I, Wiley Classics Library, John Wiley & Sons, Inc., New York, 1988. General theory; With the assistance of William G. Bade and Robert G. Bartle; Reprint of the 1958 original; A Wiley-Interscience Publication. MR 1009162
  • Alberto Galindo, On the existence of $J$-selfadjoint extensions of $J$-symmetric operators with adjoint, Comm. Pure Appl. Math. 15 (1962), 423–425. MR 149305, DOI 10.1002/cpa.3160150405
  • I. M. Glazman, An analogue of the extension theory of Hermitian operators and a non-symmetric one-dimensional boundary problem on a half-axis, Dokl. Akad. Nauk SSSR (N.S.) 115 (1957), 214–216 (Russian). MR 0091440
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Additional Information
  • © Copyright 1980 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 79 (1980), 42-44
  • MSC: Primary 47B25; Secondary 47B50
  • DOI: https://doi.org/10.1090/S0002-9939-1980-0560580-X
  • MathSciNet review: 560580