Second order regularity for the p (x )-Laplace operator
S. Challal, Abdeslem Lyaghfouri · Mathematische Nachrichten · 2011
In this paper, we establish second order regularity for the p(x)-Laplace operator. This generalizes classical results known when the function p(.) is equal to some constant p > 1. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim