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Gesztesy, Fritz; Makarov, Konstantin A. The \(\Xi\) operator and its relation to Krein’s spectral shift function. (English) Zbl 0964.47013 J. Anal. Math. 81, 139-183 (2000). Reviewer: M.Turinici (Iaşi) MSC: 47B15 47B40 × Cite Format Result Cite Review PDF Full Text: DOI arXiv