Relatively Bounded Perturbations in Krein Spaces
The main results of this thesis are based on the theory of linear operators acting in Krein spaces. In this section we briefly outline the definitions and some elementary facts. A detailed study of Krein spaces and linear operators therein can be found in [Lan62], [Lan82], [AI89], [Bog74] and [And79].
KeywordsHilbert Space Banach Space Linear Operator Krein Space Bounded Perturbation
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