Maximal J-semi-definite invariant subspaces of unbounded J-selfadjoint operators in Krein spaces

Langer, H; Tretter, C

Tretter, C (corresponding author), Univ Bern, Math Inst, Sidlerstr 5, CH-3012 Bern, Switzerland.

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2021; 494 (2):

Abstract

In this paper we establish conditions for the existence of maximal J-semi-definite invariant subspaces of unbounded J-selfadjoint operators. Our resul......

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