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Found 1,806 Documents (Results 1–100)

Recent trends in formal and analytic solutions of diff. equations. Virtual conference, University of Alcalá, Alcalá de Henares, Spain, June 28 – July 2, 2021. (English) Zbl 1508.30067

Contemporary Mathematics 782. Providence, RI: American Mathematical Society (AMS) (ISBN 978-1-4704-6604-6/pbk; 978-1-4704-7209-2/ebook). viii, 228 p. (2023).
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Singular perturbations in first-order partial differential equations with matrix differential operators. (English. Russian original) Zbl 1509.35024

J. Math. Sci., New York 268, No. 1, 130-137 (2022); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 173, 132-139 (2019).
MSC:  35B25 35F40 35R20
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Solution of a semi-boundary-value problem for a first-order degenerate partial differential equation. (English. Russian original) Zbl 1509.35372

J. Math. Sci., New York 268, No. 1, 46-55 (2022); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 173, 48-57 (2019).
MSC:  35R20 35F35
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Exact estimates of the best rational approximations of functions with derivative of generalized finite variation. (English. Russian original) Zbl 1493.41005

Russ. Math. 65, No. 10, 63-68 (2021); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2021, No. 10, 71-77 (2021).
MSC:  41A15 41A25
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