### FIXED POINT, COINCIDENCE POINT AND COMMON FIXED POINT THEOREMS UNDER VARIOUS EXPANSIVE CONDITIONS IN PARAMETRIC METRIC SPACES AND PARAMETRIC B-METRIC SPACES

#### Abstract

In this article, we establish some fixed, common fixed and coincidence point theorems for expansive type mappings in parametric metric spaces and parametric b-metric spaces. The presented theorems extend, generalize and improve many existing results in the literature. Also, we introduce some examples the support the validity of our results.

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