Fixed Point Theory and Applications
Volume 2008 (2008), Article ID 302617, 6 pages
Research Article

Fixed Point Theorems for n Times Reasonable Expansive Mapping

Chunfang Chen and Chuanxi Zhu

Institute of Mathematics, Nanchang University, Nanchang, Jiangxi 330031, China

Received 29 February 2008; Revised 3 May 2008; Accepted 16 August 2008

Academic Editor: Jerzy Jezierski

Copyright © 2008 Chunfang Chen and Chuanxi Zhu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Based on previous notions of expansive mapping, n times reasonable expansive mapping is defined. The existence of fixed point for n times reasonable expansive mapping is discussed and some new results are obtained.