Let $K$ be a locally compact hypergroup with left Haar measure and let $L^1(K)$ be the complex Lebesgue space associated with it. Let $L^infty(K)$ be the dual of $L^1(K)$. The purpose of this paper is to present some necessary and sufficient conditions for $L^infty(K)^*$ to have a topologically left invariant mean. Some characterizations of amenable hypergroups are given.

This study aims to determine the effect of Islamic banking on economic growth in Turkey by comparing it with conventional banking. In study, quarterly time series covering period 2005Q4 2018Q4 and Autoregressive Distributed Lag Model (ARDL) developed Pesaran, Shin Smith (2001) are used. According estimated long-run coefficients from ARDL model, elasticity GDP respect credit is equal 0.106 % 0.0...

Line digraphs can be obtained by sequences of state splittings, a particular kind of operation widely used in symbolic dynamics [12]. Properties of line digraphs inherited from the source have been studied, for instance in [7] Harminc showed that the cardinalities of the sets of kernels and solutions (kernel’s dual definition) of a digraph and its line digraph coincide. We extend this for (k, l...