Found 13 Documents (Results 1–13)
When is a sum of partial reflections equal to a scalar operator? (English. Russian original) Zbl 1069.47021
Funct. Anal. Appl. 38, No. 2, 157-160 (2004); translation from Funkts. Anal. Prilozh. 38, No. 2, 91-94 (2004).
Absence of the singular continuous component in the spectrum of analytic direct integrals. (English) Zbl 1084.47021
Zap. Nauchn. Semin. POMI 318, 298-307 (2004); translated in J. Math. Sci., New York 136, No. 2, 3826-3831 (2006).
Reviewer: Takashi Ichinose (Kanazawa)
Operators in a Krejn space. (English. Russian original) Zbl 1085.47049
Math. Notes 76, No. 3, 306-314 (2004); translation from Mat. Zametki 76, No. 3, 324-334 (2004).
Reviewer: Trandafir Balan (Craiova)
The complex moment problem in the exponential form. (English) Zbl 1077.47014
Reviewer: A. N. Kochubei (Kyïv)
Pairs of selfadjoint operators and their invariants. (English) Zbl 1084.47019
St. Petersbg. Math. J. 16, No. 1, 59-104 (2004); and Algebra Anal. 16, No. 1, 70-120 (2004).
Reviewer: Christiane Tretter (Bremen)
A unified approach to universal inequalities for eigenvalues of elliptic operators. (English) Zbl 1078.35080
Reviewer: Kazushi Yoshitomi (Tokyo)
Convolutions generated by self-adjoint unbounded operators. (English) Zbl 1087.47022
International conference on operator theory and operator algebras, Altavilla Milicia, Sicili, Italy, June 23–29, 2004. Palermo: Circolo Matemático di Palermo. Supplemento ai Rendiconti del Circolo Matemàtico di Palermo. Serie II 73, 257-269 (2004).
Reviewer: José Bonet (Valencia)
Common spectrum for a family of self-adjoint extensions. (Russian. English summary) Zbl 1069.47022
The Aronszajn-Donoghue theory for rank one perturbations of the \({\mathcal H}_{-2}\)-class. (English) Zbl 1139.47301
Positive self-adjoint operators generated by products of differential expressions. (English) Zbl 1067.47035
Reviewer: Michael Perelmuter (Kyïv)
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