2D.Downing,W.A.Kirk. Pacific [J].Math. V. 69,No2 ( 1977),339-346.
3J.S.Bae,E.W.Cho and S.H. Yeom. A generalization of the Caristi2Kirk fixed point theorem and it s applications to mapping theorems [J].Korean Math. Soc,1994,31:29-48.
2J.Carisit.Fixed point theorems for mapping satisfying inwardness conditions[J].Trans.Amer.Math.Soc,1976,215:241-251.
3T.Suzuki.Generalized Caristi's fixed point theorems by Bae and others[J].J.Math.Anal.Appl.2005,302:502-508.
4J.S.Bae.Fixed point theorems for weakly contractive multivalued maps[J].J.Math.Anal.Appl,2003,284:690-697.
5J.S.Bae,E.W.Cho and S.H.Yeom.A generalization of the Caristi-Kirk fixed point theorem and its applications to mapping theorems[J].J.Korean Math.Soc,1994,31:29-48.
6Y.Q.Chen,Y.J.Cho and L.Yang.Note on the results with lower semi-continuity[J].Bull.Korean Math.Soc.2002,39:535-541.
7J.Caristi and W.A.Kirk.Geometric fixed point theory and inwardness conditions[M].in:Lecture Notes in Math,Springer,Berlin,1975:74-83.
