Volume 41_2_(2020)_173-187.

On necessary conditions for the weak lower semicontinuity of integral functionals in Musielak-Orlicz-Sobolev spaces
Elhoussine Azroul, Mohamed Badr Benboubker, Houssam Chrayteh and Khaled Kouhaila

Abstract. In the present work, we prove an approximation result in Musielak-Orlicz-Sobolev spaces and we give an application of this approximation result to a necessary condition in the calculus of variations.

Rend. Mat. Appl. (7) 41 (2020) 173-187;  pdf