  In the present paper, the new generalized classes of (p,q)-starlike and
$(p,q)$-convex functions are introduced by using the (p,q)-derivative operator.
Also, the (p,q)-Bernardi integral operator for analytic function is defined in
an open unit disc. Our aim for these classes is to investigate the Fekete-Szego
inequalities. Moreover, Some special cases of the established results are
discussed. Further, certain applications of the main results are obtained by
applying the (p,q)-Bernardi integral operator
