Partial expansion of a Lipschitz domain and some applications
Analysis of PDEs
2012-01-04 v1
Abstract
We show that a Lipschitz domain can be expanded solely near a part of its boundary, assuming that the part is enclosed by a piecewise C1 curve. The expanded domain as well as the extended part are both Lipschitz. We apply this result to prove a regular decomposition of standard vector Sobolev spaces with vanishing traces only on part of the boundary. Another application in the construction of low-regularity projectors into finite element spaces with partial boundary conditions is also indicated.
Keywords
Cite
@article{arxiv.1201.0047,
title = {Partial expansion of a Lipschitz domain and some applications},
author = {Jay Gopalakrishnan and Weifeng Qiu},
journal= {arXiv preprint arXiv:1201.0047},
year = {2012}
}