Estimates on translations and Taylor expansions in fractional Sobolev spaces
Estimates on translations and Taylor expansions in fractional Sobolev spaces
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分数 Sobolev 空间中平移和泰勒展开的估计
DOI:
10.1016/j.na.2020.111995
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
J. V'azquez
中科院分区:
文献类型:
--
作者:
F. Teso;David G'omez;J. V'azquez
In this paper we study how the (normalised) Gagliardo semi-normscontrol translations. In particular, we prove thatfor,and, wheredepends only on. We then obtain a corresponding higher-order version of this result: we get fractional rates of the error term in the Taylor expansion. We also present relevant implications of our two results. First, we obtain a direct proof of several compact embedding ofwhere the Fr\'echet-Kolmogorov Theorem is applied with known rates. We also derive fractional rates of convergence of the convolution of a function with suitable mollifiers. Thirdly, we obtain fractional rates of convergence of finite-difference discretizations for.
DOI:
10.4171/ifb/325
发表时间:
2013-08
期刊:
arXiv: Analysis of PDEs
影响因子:
--
作者:
L. Brasco;E. Lindgren;E. Parini
通讯作者:
L. Brasco;E. Lindgren;E. Parini