International Journal of Mathematics and Mathematical Sciences 
Volume 30 (2002), Issue 6, Pages 319-325
doi:10.1155/S0161171202110350

Some results on fixed point theorems for multivalued mappings in complete metric spaces

Jeong Sheok Ume,1 Byung Soo Lee,2 and Sung Jin Cho3

 1Department of Applied Mathematics, Changwon National University, Changwon 641-773, Korea
2Department of Mathematics, Kyungsung University, Pusan 608-736, Korea
3Department of Applied Mathematics, Pukyong National University, Pusan 608-737, Korea
Received 17 October 2001

Abstract

Using the concept of w-distance, we improve some well-known fixed point theorems.