The basic concept of the monoid of generalized cohypersubstitutions of type gif.latex?\tau=(n_i)_{i\in&space;I} was studied by Jermjitpornchai & Seangsura (2013). In this research, we study some properties of projection and dual generalized cohypersubstitutions of type gif.latex?\tau=(n) and characterize the set of all idempotent elements of monoid of generalized cohypersubstitutions of type gif.latex?\tau=(n).
Keywords
generalized cohypersubstitutions, idempotent elements, projection and dual generalized cohypersubstitutions