%0 Journal Article
%T Boundary regularity for degenerate and singular parabolic equations
%A Anders Bj£¿rn
%A Jana Bj£¿rn
%A Ugo Gianazza
%A Mikko Parviainen
%J Mathematics
%D 2013
%I arXiv
%R 10.1007/s00526-014-0734-9
%X We characterise regular boundary points of the parabolic $p$-Laplacian in terms of a family of barriers, both when $p>2$ and $1<p<2$. Due to the fact that $p\not=2$, it turns out that one can multiply the $p$-Laplace operator by a positive constant, without affecting the regularity of a boundary point. By constructing suitable families of barriers, we give some simple geometric conditions that ensure the regularity of boundary points.
%U http://arxiv.org/abs/1310.6845v1