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Found 4,459 Documents (Results 1–100)

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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Field arithmetic. 4th corrected edition. (English) Zbl 07720284

Ergebnisse der Mathematik und ihrer Grenzgebiete. 3. Folge 11. Cham: Springer (ISBN 978-3-031-28019-1/hbk; 978-3-031-28022-1/pbk; 978-3-031-28020-7/ebook). xxxi, 827 p. (2023).
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On estimates of uniform approximations by rational Fourier-Chebyshev integral operators for a certain choice of poles. (English. Russian original) Zbl 1518.42004

Math. Notes 113, No. 6, 815-830 (2023); translation from Mat. Zametki 113, No. 6, 876-894 (2023).
MSC:  42A10 41A20 41A50
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Chebyshev approximation of multivariable functions by a constrained rational expression. (English. Ukrainian original) Zbl 1528.41075

Cybern. Syst. Anal. 59, No. 1, 146-155 (2023); translation from Kibern. Sist. Anal. 59, No. 1, 169-179 (2023).
MSC:  41A50 41A05 65D05
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