Behrndt, Jussi; Leben, Leslie; Philipp, Friedrich Variation of discrete spectra of non-negative operators in Krein spaces. (English) Zbl 1349.47062 J. Oper. Theory 71, No. 1, 157-173 (2014). Reviewer: Eungil Ko (Seoul) MSC: 47B50 47A11 47A55 PDFBibTeX XMLCite \textit{J. Behrndt} et al., J. Oper. Theory 71, No. 1, 157--173 (2014; Zbl 1349.47062) Full Text: DOI arXiv
Behrndt, Jussi Finite rank perturbations of locally definitizable self-adjoint operators in Krein spaces. (English) Zbl 1164.47042 J. Oper. Theory 58, No. 2, 415-440 (2007). Reviewer: Alan Andrew (Bundoora) MSC: 47B50 47A55 PDFBibTeX XMLCite \textit{J. Behrndt}, J. Oper. Theory 58, No. 2, 415--440 (2007; Zbl 1164.47042)