In the present paper‎, ‎we show the existence of a coupled fixed point for a non-decreasing mapping in partially ordered complete metric space using a partial order induced by an appropriate function $phi$‎. ‎We also define the concept of weakly related mappings on an ordered space‎. ‎Moreover common coupled fixed points for two and three weakly related mappings are also proved in the same space‎.

The aim of this paper is to introduce and obtain some characterizations of weakly $e$-irresolute functions by means of $e$-open sets defined by Ekici [6]. Also, we look into further properties relationships between weak $e$-irresoluteness and separation axioms and completely $e$-closed graphs.

Read produced the first example of a Banach space ER such that the associated Banach algebra B(ER) of bounded operators admits a discontinuous derivation (J. London Math. Soc. 1989). We generalize the main theorem about B(ER) from which Read deduced this conclusion, as well as the key technical step in his proof, by constructing a strongly split-exact sequence {0} −→ W (ER) −→ B(ER) −→ ←− l2(N)...

This paper reviews earlier studies and shows that the money demand (MD) relationship under a fixed exchange rate (ER) regime differs from floating ER regime, mainly due to limited role of monetary policy in former regime. It then empirically demonstrates an open-economy model augmented with country-specific factors is better framework for characterizing MD function by applying cointegration equ...