Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
$\text{A#H#H}$$\text{A#H#H*}$ is isomorphic to $M_n(A)$. You may check Moss E.Sweedler's textbook: "Hopf algebras" to find the proof
$\text{A#H#H}$ is isomorphic to $M_n(A)$.
$\text{A#H#H*}$ is isomorphic to $M_n(A)$. You may check Moss E.Sweedler's textbook: "Hopf algebras" to find the proof
A#H#H*$\text{A#H#H}$ is isomorphic to M_n(A)$M_n(A)$.
A#H#H* is isomorphic to M_n(A)
