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Found 3,594 Documents (Results 1–100)

Refinements of the 2-dimensional Strichartz estimate on the maximum wave packet. (English) Zbl 07807670

Guo, Shaoming (ed.) et al., Recent developments in harmonic analysis and its applications. AMS special session on harmonic analysis, lvirtual, March 26–27, 2022. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 792, 147-170 (2024).
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Pourchet’s theorem in action: decomposing univariate nonnegative polynomials as sums of five squares. (English) Zbl 07760788

Dickenstein, Alicia (ed.) et al., Proceedings of the 48th international symposium on symbolic and algebraic computation, ISSAC, Tromsø, Norway, July 24–27, 2023. New York, NY: Association for Computing Machinery (ACM). 425-433 (2023).
MSC:  68W30
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On some properties of semi-Hamiltonian systems arising in the problem of integrable geodesic flows on the two-dimensional torus. (English. Russian original) Zbl 1528.37048

Sib. Math. J. 64, No. 5, 1063-1075 (2023); translation from Sib. Mat. Zh. 64, No. 5, 881-894 (2023).
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Well-posedness of boundary-value problems for conditionally well-posed integro-differential equations and polynomial approximations of their solutions. (English. Russian original) Zbl 1518.45009

J. Math. Sci., New York 272, No. 6, 816-825 (2023); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 175, 69-78 (2020).
MSC:  45J05 45L05 65R20
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