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Found 310 Documents (Results 1–100)

On the representation of measurable functions by series with respect to complete orthonormal systems with prescribed coefficients. (English. Russian original) Zbl 0653.42032

Sov. J. Contemp. Math. Anal., Arm. Acad. Sci. 21, No. 5, 21-31 (1986); translation from Izv. Akad. Nauk Arm. SSR, Mat. 21, No. 5, 442-452 (1986).
MSC:  42C15 42C30
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Spectral theory of finite-zone nonstationary Schrödinger operators. A nonstationary Peierls model. (English. Russian original) Zbl 0637.35060

Funct. Anal. Appl. 20, 203-214 (1986); translation from Funkts. Anal. Prilozh. 20, No. 3, 42-54 (1986).
Reviewer: M.A.Perelmuter
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Description of the cancellar of a class of integral functions of finite semi-power and some applications. (English. Russian original) Zbl 0632.30033

Sov. Math. 30, No. 2, 36-42 (1986); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1986, No. 2(285), 29-33 (1986).
Reviewer: J.Lyubarskij
MSC:  30D20 42A65 30E10
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On convergence of expansions in eigenfunctions and associated functions of the Schrödinger operator at a point of discontinuity of the potential. (English. Russian original) Zbl 0629.35094

Sov. Math., Dokl. 33, 716-720 (1986); translation from Dokl. Akad. Nauk SSSR 288, 547-551 (1986).
Reviewer: M.A.Perelmuter
MSC:  35P10 35J10 46E35
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