Some approximate fixed point theorems without continuity of the operator using auxiliary functions

Chandok, Sumit ; Ansari, Arslan Hojjat ; Narang, Tulsi Dass

Mathematica Bohemica, Tome 144 (2019) no. 3, pp. 251-271

Abstract (VO)

We introduce partial generalized convex contractions of order $4$ and rank $4$ using some auxiliary functions. We present some results on approximate fixed points and fixed points for such class of mappings having no continuity condition in $\alpha $-complete metric spaces and $\mu $-complete metric spaces. Also, as an application, some fixed point results in a metric space endowed with a binary relation and some approximate fixed point results in a metric space endowed with a graph have been obtained. Some examples are also provided to illustrate the main results and to show the usability of the given hypotheses.

Détail

DOI : 10.21136/MB.2018.0095-17

Classification : 47H10, 54H25
Keywords: $\varepsilon $-fixed point; $\alpha $-admissible mapping; partial generalized convex contraction of order $4$ and rank $4$; $\alpha $-complete metric space

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