COMMUNICATIONS IN ALGEBRA, cilt.50, sa.1, ss.190-198, 2022 (SCI-Expanded)
In this article, comultiplication modules in terms of dual Zariski topology are characterized. Some connections between subspaces of a complement dual Zariski topology and submodules of a comultiplication module are studied. Then, some useful relations between open subsets of a complement dual Zariski topology and second radical submodules related to these are obtained. Finally, direct connections among rings, comultiplication modules, the complement dual Zariski topology and the dual Zariski topology are established.