Coincidence point theorems for $\varphi-\psi-$contraction mappings in metric spaces involving a graph
Journal Title: Карпатські математичні публікації - Year 2016, Vol 8, Issue 2
Abstract
Some new coupled coincidence and coupled common fixed point theorems for $\varphi-\psi-$contraction mappings are established. We have also an application to some integral system to support the results.
Authors and Affiliations
E. Yolacan, H. Kiziltunc, M. Kir
Poincare series for the algebras of joint invariants and covariants of n quadratic forms
We consider one of the fundamental objects of classical invariant theory, namely the Poincare series for an algebra of invariants of Lie group $SL_2$. The first two terms of the Laurent series expansion of Poincar\'e se...
Faithful group actions and Schreier graphs
Each action of a finitely generated group on a set uniquely defines a labelled directed graph called the Schreier graph of the action. Schreier graphs are used mainly as a tool to establish geometrical and dynamical pro...
Points of narrowness and uniformly narrow operators
It is known that the sum of every two narrow operators on $L_1$ is narrow, however the same is false for $L_p$ with $1 < p < \infty$. The present paper continues numerous investigations of the kind. Firstly, we study nar...
Skew semi-invariant submanifolds of generalized quasi-Sasakian manifolds
In the present paper, we study a new class of submanifolds of a generalized Quasi-Sasakian manifold, called skew semi-invariant submanifold. We obtain integrability conditions of the distributions on a skew semi-invaria...
On the structure of some minimax-antifinitary modules
Let R be a ring and G a group. An R-module A is said to be {\it minimax} if A includes a noetherian submodule B such that A/B is artinian. The author study a Zp∞G-module A such that A/CA(H) is minimax as a Zp∞-mod...