Some fixed point theorems for G -isotone mappings in partially ordered metric spaces

Author

School of Mathematical Sciences, Yancheng Teachers University, Yancheng, 224051, Jiangsu, PR China

Abstract

Fixed point theorems for G -isotone mappings, which extend some recent results for mixed
monotone and isotone mappings in partially ordered metric spaces are proved. Moreover, the equiv-
alence between unidimensional and multidimensional fixed point theorems is investigated.

Keywords