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We first introduce a new class of contractivemappings in the setting of metric spaces and then we present certain Greguš type fixed point theorems for such mappings. As an application, we derive certain Greguš type common fixed theorems. Our results extend Greguš fixed point theoreminmetric spaces and generalize and unify some related results in the literature. An example is also given to support our main result. [ABSTRACT FROM AUTHOR]

Let (X, d) be a complex valued metric space and let S, T bemappings from X to a set of all fuzzy subsets of X .We present sufficient conditions for the existence of a common α-fuzzy fixed point of S and T. Our results improve and extend certain recent results in literature. Moreover, we discuss an illustrative example to highlight the realized improvements. [ABSTRACT FROM AUTHOR]

The aim of this paper is to unify the concept of greatest lower bound (g.l.b) property and establish some generalized common fixed results. We support our results by a nontrivial example. [ABSTRACT FROM AUTHOR]

We introduce and study the notion of common coupled fixed points for a pair of mappings in complex valued metric space and demonstrate the existence and uniqueness of the common coupled fixed points in a complete complex-valuedmetric space in view of diverse contractive conditions. In addition, our investigations are well supported by nontrivial examples. [ABSTRACT FROM AUTHOR]