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.
منابع مشابه
Collocation Solutions of a Weakly Singular Volterra Integral Equation
p(t, s) := s tμ , (1.2) where μ > 0, K(t, s) is a smooth function and g is a given function, can arise, e.g., in heat conduction problems with mixed boundary conditions ([2], [10]). The case when K(t, s) = 1 has been considered in several papers. The following lemma summarizes the analytical results for (1.1) in the case K(t, s) = 1. Lemma 1.1. (a) [12] Let μ > 1 in (1.2). If the function g bel...
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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