“…Fixed point theorems on partial metric spaces have received a lot of attention in the last years (see, for instance, [2,3,4,5,6,7,8,9,10,14,15,16,17,22,23,24] and their references). Abbas et al [1] introduced the concept of w-compatible mappings and obtained coupled coincidence point and coupled point of coincidence for mappings satisfying a contractive condition in cone metric spaces.…”