In this paper, using the concepts of f-closed set and inverse f-closed set, we will prove some fixed point theorems for graphic contractions in complete quasimetric space. Then, as applications, coupled fixed point theorems in quasimetric spaces without the mixed monotonicity property are obtained.

 

 

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Author(s)

Petrușel, Adrian, Petruşel, Gabriela, Yao, Jen-Chih