Finite element quasi-interpolation and best approximation
نویسندگان
چکیده
منابع مشابه
Finite element quasi-interpolation and best approximation
This paper introduces a quasi-interpolation operator for scalarand vector-valued finite element spaces constructed on affine, shape-regular meshes with some continuity across mesh interfaces. This operator gives optimal estimates of the best approximation error in any Lp-norm assuming regularity in the fractional Sobolev spaces W r,p, where p ∈ [1,∞] and the smoothness index r can be arbitraril...
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ژورنال
عنوان ژورنال: ESAIM: Mathematical Modelling and Numerical Analysis
سال: 2017
ISSN: 0764-583X,1290-3841
DOI: 10.1051/m2an/2016066