Analysis of Malmquist-Takenaka-Christov rational approximations with applications to the nonlinear Benjamin equation

نویسندگان

چکیده

Abstract In the paper, we study approximation properties of Malmquist-Takenaka-Christov (MTC) system. We show that discrete MTC approximations converge rapidly under mild restrictions on functions asymptotic at infinity. This makes them particularly suitable for solving semi- and quasi-linear problems containing Fourier multipliers, whose symbols are not smooth origin. As a concrete application, provide rigorous convergence stability analyses collocation scheme nonlinear Benjamin equation. demonstrate method converges admits an efficient implementation, comparable to best spectral hybrid Fourier/finite-element methods described in literature.

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ژورنال

عنوان ژورنال: Communications in Nonlinear Science and Numerical Simulation

سال: 2021

ISSN: ['1878-7274', '1007-5704']

DOI: https://doi.org/10.1016/j.cnsns.2020.105571