Hacettepe Journal of Mathematics and Statistics, vol.38, no.3, pp.285-291, 2009 (SCI-Expanded)
In this paper we extend and generalize a theorem of M. R. Singh, L. S. Singh and P. P. Murthy (Common fixed points of set valued mappings, Int. J. Math. Sci., 25 (6), 411-415, 2001) in a 2-metric space with a Greguš type condition, and give some common fixed point theorems of set-valued maps in 2-metric spaces.