and
Department of Mathematics, University of Tehran, P.O.Box 13145-448, Tehran, IRAN
E-mail: yassemi@khayam.ut.ac.ir
Abstract. In this paper the concept of the second submodule (the dual notion of prime submodule) is introduced.
AMSclassification. 13C13, 13C11
Keywords. Prime submodule, second submodule, injective and flat module