tensor categories

A graded tensor category over a group $G$ will be called a crossed product tensor category if every homogeneous component has at least one multiplicatively invertible object. Our main result is a description of crossed product tensor categories, …

A graded tensor category over a group $G$ will be called a strongly $G$‐graded tensor category if every homogeneous component has at least one multiplicatively invertible object. Our main result is a description of the module categories over a …