Module extensions of dual Banach algebras
  In this paper we define the module extension dual Banach algebras and we use this Banach algebras to finding the relationship between $weak^*-$continuous homomorphisms of dual Banach algebras and Connes-amenability. So we study the $weak^*-$continuous derivations on module extension dual Banach algebras. 
M. Eshaghi Gordji, F. Habibian, A. Rejali