The collection of row-and-column finite matrices over $\mathbb Q$ indexed by $\omega$. That is, each column and each row only has finitely many nonzero entries in it.
Keywords infinite matrix ring subring
(Nothing was retrieved.)
| Name | Description |
|---|---|
| Jacobson radical | $\{0\}$ |
| Left singular ideal | $\{0\}$ |
| Right singular ideal | $\{0\}$ |