International Journal of Mathematics and Mathematical Sciences 
Volume 24 (2000), Issue 9, Pages 627-641
doi:10.1155/S0161171200004968

On coincidence and common fixed points of nearly densifying mappings

Zeqing Liu1 and Jeong Sheok Ume2

 1Department Of Mathematics, Liaoning Normal University, Liaoning, Dalian 116029, China
2Department Of Applied Mathematics, Changwon National University, Changwon 641-773, Korea
Received 7 February 2000

Abstract

Coincidence and common fixed point theorems for certain new classes of nearly densifying mappings are established. Our results extend, improve, and unify a lot of previously known theorems.