On the superconvergence of some quadratic integro-splines at the mid-knots of a uniform partition

Feng-Gong Lang and Xiao-Ping Xu

Applied Mathematics and Computation, 2018, vol. 338, issue C, 507-514

Abstract: In this paper, we illustrate some new superconvergence of four kinds of quadratic integro-splines. It is proved that these quadratic integro-splines possess superconvergence in function values approximation (fourth order convergent) and in second-order derivatives approximation (second order convergent) at the mid-knots of a uniform partition.

Keywords: Quadratic integro-spline; Superconvergence; Mid-knot (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:338:y:2018:i:c:p:507-514

DOI: 10.1016/j.amc.2018.06.046

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