The positive solutions to a quasi-linear problem of fractional p-Laplacian type without the Ambrosetti-Rabinowitz condition

In this paper, we study the existence of nontrivial solution to a quasi-linear problem where is a nonlocal and nonlinear operator and , , , is a bounded domain which smooth boundary . Using the variational methods based on the critical points theory, together with truncation and comparison techniques, we show that there exists a critical value of the parameter, such that if , the problem has at least two positive solutions, if , the problem has at least one positive solution and it has no positive solution if . Finally, we show that for all , the problem has a smallest positive solution.