On $(\sigma,\delta)$-skew McCoy modules

Document Type : Research Paper


1 Department of mathematics, Faculty of Sciences, Abdelmalek Essaadi University, Tetouan, Morocco.

2 Department of Mathematics, University Abdelmalek Essaadi, Tetouan, Morocco.


Let $(\sigma,\delta)$ be a quasi derivation of a ring $R$ and $M_R$ a right $R$-module. In this paper, we introduce the notion of $(\sigma,\delta)$-skew McCoy modules which extends the notion of McCoy modules and $\sigma$-skew McCoy modules. This concept can be regarded also as a generalization of $(\sigma,\delta)$-skew Armendariz modules. We study some connections between reduced modules, semicommutative modules, $(\sigma,\delta)$-compatible modules and $(\sigma,\delta)$-skew McCoy modules. Furthermore, we will give some results showing that the property of being an $(\sigma,\delta)$-skew McCoy module transfers well from a module $M_R$ to its skew triangular matrix extensions and vice versa.