Superconvergence of interpolated collocation solutions for weakly singular Volterra integral equations of the second kind

نویسندگان

چکیده

Abstract In this paper, we discuss the superconvergence of “interpolated” collocation solutions for weakly singular Volterra integral equations second kind. Based on solution $$u_h$$ u h , two different interpolation postprocessing approximations higher accuracy: $$I_{2h}^{2m-1}u_h$$ I 2 m - 1 based points and $$I_{2h}^{m}u_h$$ least square scheme are constructed, whose convergence order same as that iterated solution. Such methods much simpler in computation. We further apply technique to hybrid similar results obtained. Numerical experiments shown demonstrate efficiency methods.

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ژورنال

عنوان ژورنال: Computational & Applied Mathematics

سال: 2021

ISSN: ['1807-0302', '2238-3603']

DOI: https://doi.org/10.1007/s40314-021-01435-4