“…Our results complement not only the aforementioned papers ( [1,3,4,8,9,13], where the case p N has been treated) but also some results obtained on bounded domains where elliptic problems with oscillatory nonlinearities have been considered; Dirichlet problems were studied in [2,7,21,24], while Neumann type problems in [18,23]. The common feature of these works is that infinitely many solutions are obtained by means of various methods; for instance, sub-super solution arguments (see [21]); the general variational principle of Ricceri (see [7,18,23]); continuity of certain superposition operators (see [2,24]).…”