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JOURNALS // Zapiski Nauchnykh Seminarov POMI // Archive

Zap. Nauchn. Sem. POMI, 2021 Volume 503, Pages 121–136 (Mi znsl7104)

On general approach to construction of self-adjoint dilation for dissipative operator

D. V. Tretyakov, Yu. L. Kudryashov

Crimea Federal University, Simferopol

Abstract: On general approach to construction of self-adjoint dilation for dissipative operator. A general approach is presented to the construction of a self-adjoint dilation for a density defined dissipative operator with nonempty set of regular points. The construction involves the boundary pairs for maximal symmetric operators. Some partial cases are considered. A minimality criterion for the resulting dilation is proved.

Key words and phrases: self-adjoint dilation, dissipative operator, spaces of boundary values of the operator, maximal symmetric operator, defect operators, defect subspaces, defect index.

UDC: 517.432

Received: 01.04.2021



© Steklov Math. Inst. of RAS, 2024