关键词: weak T-coalgebra, braided weak T-coalgebra, weak crossed group category, braided weak crossed group category

Abstract: Recently Turaev generalized the notion of a tensor category to that of a crossed group category.In[5]the authors constructed the representation category Rep（H） of a T-coalgebra H.In[2]the authors introduced the notions of a weak tensor category to characterize a weak bialgebra and a weak Hopf algebra.This paper is based on these ideas to naturally introduce the notions of a weak T-category and a weak braided T-category which are not under the usual way and prove that the categories of representations of a weak T-coalgebra and a weak braided T-coalgebra are a weak T-category and a weak braided T-category respectively.Furthermore we also discuss some properties of weak T-category. 

Key words: weak T-coalgebra, braided weak T-coalgebra, weak crossed group category, braided weak crossed group category