摘要

In the present paper, we consider the fractional p-Laplacian equation @@@ where p >= 2, N >= 2, 0 < s < 1, V. C( R-N, R) and f. C( R-N x R, R) are allowed to be sign- changing. In such a double sign-changing case, a new result on the existence of nontrivial solutions for Eq. ( 1.1) is obtained via variational methods, which is even new for p = 2.