Let $k$ be a field of characteristic $2$, and $\lambda\in k$ be a (nonzero) element that isn't a root of unity. $R=k\langle x, x^{-1}, y, y^{-1}\rangle/\langle xy-\lambda yx\rangle$.
Keywords free algebra quotient ring twisted group ring
(Nothing was retrieved.)
| Name | Description |
|---|---|
| Idempotents | $\{0,1\}$ |
| Jacobson radical | $\{0\}$ |
| Left singular ideal | $\{0\}$ |
| Right singular ideal | $\{0\}$ |