Relatively Form-Bounded Perturbations in Krein Spaces

Jan Nesemann

Chapter Chapter 2 in PT-Symmetric Schrödinger Operators with Unbounded Potentials, 2011, pp 35-64 from Springer

Abstract: Abstract In Chapter 1 we considered perturbations A0 +V of a closed linear operator A0 by a linear operator V for which A0 +V is defined as an operator sum. In this chapter we consider operators A0 and V for which the sum is defined only by means of quadratic forms. We will extend the main results from Chapter 1 to this more general case.

Keywords: Hilbert Space; Quadratic Form; Sectorial Form; Symmetric Operator; Sectorial Operator (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-8348-8327-8_3

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DOI: 10.1007/978-3-8348-8327-8_3

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