FILOMAT, cilt.27, sa.6, ss.1121-1126, 2013 (SCI-Expanded)
Let R be a topological ring with identity and M a topological (left) R-module such that the underlying topology of M is path connected and has a universal cover. Let 0 is an element of M be the identity element of the additive group structure of M, and N a submodule of the R-module pi(1)(M, 0). In this paper we prove that if R is discrete, then there exists a covering morphism p: ((M) over tilde (N), (0) over tilde) -> (M, 0) of topological R-modules with characteristic group N and such that the structure of R-module on M lifts to (M) over tilde (N). In particular, if N is a singleton group, then this cover becomes a universal cover.