“…The problems of existence, uniqueness and other properties of solutions of special forms of BVP (1.1)-(1.2) and its variants have been studied by several researchers under variety of hypotheses by using different techniques (as in [1,3,11,12,15,16,17,18,19,20,21,31,32]). Recently, S. Soltuz and T. Grosan [36] have studied the special version of equation (1.1).…”