Relatively Form-Bounded Perturbations in Krein Spaces

  • Jan Nesemann


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.


Hilbert Space Quadratic Form Sectorial Form Symmetric Operator Sectorial Operator 
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© Vieweg+Teubner Verlag | Springer Fachmedien Wiesbaden GmbH 2011

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  • Jan Nesemann

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