XU Wen-qing, ZHU Chuan-xi, WU Zhao-qi. Quadruple Coincidence Point Theorems for Mixed g-Monotone Mappings in Partially Ordered Metric Spaces and Their Applications[J]. Applied Mathematics and Mechanics, 2015, 36(3): 332-342. doi: 10.3879/j.issn.1000-0887.2015.03.011
 Citation: XU Wen-qing, ZHU Chuan-xi, WU Zhao-qi. Quadruple Coincidence Point Theorems for Mixed g-Monotone Mappings in Partially Ordered Metric Spaces and Their Applications[J]. Applied Mathematics and Mechanics, 2015, 36(3): 332-342.

# Quadruple Coincidence Point Theorems for Mixed g-Monotone Mappings in Partially Ordered Metric Spaces and Their Applications

##### doi: 10.3879/j.issn.1000-0887.2015.03.011
Funds:  The National Natural Science Foundation of China(11361042;11326099;11071108;11461045)
• Rev Recd Date: 2014-12-30
• Publish Date: 2015-03-15
• The concepts of α-admissible mappings and compatible mappings for a pair of mappings F:X4X and g:X→X in partially ordered metric spaces were constructed. Based on this, with the iterative method, existence and uniqueness of the quadruple coincidence points for the α-admissible and compatible mappings satisfying the mixed g-monotone properties under the α-ψ-contractive conditions in the partially ordered complete metric spaces were studied, and some new theorems were established. Finally, 2 examples were presented as applications of the main theorems. The results show that the work generalizes and improves several fixed point theorems and coincidence point theorems in the recent corresponding literatures.
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