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Found 6 Documents (Results 1–6)

Exact values of Bernstein widths of Sobolev classes of periodic functions. (English. Russian original) Zbl 0859.41019

Math. Notes 58, No. 1, 770-774 (1995); translation from Mat. Zametki 58, No. 1, 139-143 (1995).
MSC:  41A46 46E35
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Spectral theory of nonlinear equations and \(N\)-widths of Sobolev spaces. (English) Zbl 0804.41020

Gonchar, A. A. (ed.) et al., Methods of approximation theory in complex analysis and mathematical physics. Selected papers of international seminars on “Methods of approximation theory in complex analysis and mathematical physics” held in Leningrad, Russia, May 13-26, 1991. Berlin: Springer-Verlag. Lect. Notes Math. 1550, 19-30 (1993).
Reviewer: A.Kufner (Praha)
MSC:  41A46 41A65 47J10
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On Bernstein-Nikol’skij inequalities and widths of Sobolev function classes. (English. Russian original) Zbl 0797.46025

Russ. Acad. Sci., Dokl., Math. 45, No. 2, 272-275 (1992); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 323, No. 2, 202-205 (1992).
Reviewer: H.Triebel (Jena)
MSC:  46E35
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