Zhuravlev, V.; Zhuravlyov, D.(Algebra and Discrete Mathematics, 2009)
We consider projective cover over tiled order and calculate the kernel of epimorphism from direct sum of submodules of distributive module to their sum.
Reza Ebrahimi Atani; Shahabaddin Ebrahimi Atani(Algebra and Discrete Mathematics, 2009)
The goal point of recent attempts to classify indecomposable modules over non-artinian rings has been pullback rings. The purpose of this paper is to outline a new approach to the classification of indecomposable weak ...