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Found 60,959 Documents (Results 1–100)

On the optimal recovery of one family of operators on a class of functions from approximate information about its spectrum. (English. Russian original) Zbl 07825242

Sib. Math. J. 65, No. 2, 245-256 (2024); translation from Sib. Mat. Zh. 65, No. 2, 235-248 (2024).
MSC:  41Axx 42Bxx 46Exx
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Extreme problems of weight approximation on the real axis. (English. Ukrainian original) Zbl 07815335

J. Math. Sci., New York 279, No. 1, 104-114 (2024); translation from Ukr. Mat. Visn. 20, No. 4, 593-606 (2023).
MSC:  41Axx 22-XX 30Dxx
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Optimal difference formulas in the Sobolev space. (English. Russian original) Zbl 07805800

J. Math. Sci., New York 278, No. 4, 712-721 (2024); translation from Sovrem. Mat., Fundam. Napravl. 68, No. 1, 167-177 (2022).
MSC:  65D30 41A55
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The Riesz-Zygmund sums of Fourier-Chebyshev rational integral operators and their approximation properties. (English. Russian original) Zbl 07804697

Sib. Math. J. 65, No. 1, 118-138 (2024); translation from Sib. Mat. Zh. 65, No. 1, 140-163 (2024).
MSC:  41Axx 42Axx 34Exx
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