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Found 2,097 Documents (Results 1–100)

Invariant subspaces and eigenvalues of the three-particle discrete Schrödinger operators. (English. Russian original) Zbl 07806530

Russ. Math. 67, No. 9, 1-15 (2023); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2023, No. 9, 3-19 (2023).
MSC:  81Qxx 35Pxx 35Jxx
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Existence condition for the eigenvalue of a three-particle Schrödinger operator on a lattice. (English. Russian original) Zbl 1528.81145

Russ. Math. 67, No. 2, 1-22 (2023); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2023, No. 2, 3-25 (2023).
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Cyclic vectors and invariant subspaces of the backward shift operator in Schwartz modules. (English. Russian original) Zbl 1522.47022

Funct. Anal. Appl. 56, No. 3, 188-198 (2022); translation from Funkts. Anal. Prilozh. 56, No. 3, 39-51 (2022).
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Invariant subspaces of the generalized backward shift operator and rational functions. (English. Russian original) Zbl 07618891

St. Petersbg. Math. J. 33, No. 6, 927-942 (2022); translation from Algebra Anal. 33, No. 6, 49-70 (2021).
MSC:  47A15 46E10 47B37
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