“…In the setting of Musielak-Orlicz spaces and in the variational case, Benkirane and Sidi El vally [15] proved the existence of solutions for the obstacle elliptic problem where they generalized the work of Gossez and Mustonen in [19], there are several papers worth mentioning that deal with the existence solutions of elliptic and parabolic problems under various assumptions (see [13,25,24,21,12,22,23,11,14,3,4,2,5,7,6] for more details).…”