The braided monoidal structures on the category of vector spaces graded by the Klein group

D. Bulacu, S. Caenepeel, B. Torrecillas

Let $k$ be a field, $k^{\ast }=k\setminus \{0\}$ and $C_2$ the cyclic group of order 2. In this note we compute all the braided monoidal structures on the category of $k$-vector spaces gr…