Chen Pan, Kong Wei-ming, Yang Li-ping. Common Fixed Point Theorems for Four Mapsin the Cone Metric Spaces[J]. 2014, 31(4): 79-84.DOI: 10.3969/j.issn.1007-7162.2014.04.015.
The existence and uniqueness of the common fixed points for four maps in the complete cone metric space are discussed.The main results in the papers improve and generalize the conclusions of a pair of self-mappings in the cone metric space.