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Coincidence point theorems through weak contractions in partially ordered fuzzy metric spaces. (English) Zbl 1321.54105

Summary: In this paper we prove some coincidence point theorems and fixed point theorems by assuming weak contraction inequalities involving three control functions in a fuzzy metric space having a partial order defined on it. Two of the control functions are discontinuous. In the sequel we introduce a weak contraction mapping principle. Several existing results are extended by our theorems. Our results are supported with examples. The methodology is a blending of analytic and order theoretic approaches.

MSC:

54H25 Fixed-point and coincidence theorems (topological aspects)
54A40 Fuzzy topology
54E35 Metric spaces, metrizability