Induced and Coinduced Representations of Hopf Group Coalgebra
  In this work we study the induction theory for Hopf group coalgebra. To reach this goal we define a substructure B of a Hopf group coalgebra $H$, called subHopf group coalgebra. Also, we introduced the definition of Hopf group suboalgebra and group coisotropic quantum subgroup of $H$. 
A.S.Hegazi, F.Ismail and M.M. Elsofy