Indecomposable Injective Comodules Over Morita-Takeuchi Context Coalgebras

Based on the structure of indecomposable projective and injective modules over Morita context algebras and by using the duality and the equivalence of comodule categories,the structure of indecomposable injective comodules over Morita-Takeuchi context coalgebras was described.Furthermore,the lower and upper bounds of global dimensions of these coalgebras was obtained.