What is the nilradical of $\mathfrak{gl}_n$?
37677
Radical of $\mathfrak{gl}_n$
68014
Prove that $\mathfrak{su}(2)$ is not isomorphic to $\mathfrak{sl}(2,\mathbb R)$
146028
$GL(n, \mathbb{C})$ is isomorphic to a subgroup of $GL(2n, \mathbb{R})$
18036
Localization by a non-nilpotent as a polynomial quotient
141258
Why does $M \mathbin{\otimes_R} N \cong M_\mathfrak{p} \mathbin{\otimes_{R_\mathfrak{p}}} N$?
58135
Quotient group $SL(2,\mathbb{R})/SO(2,\mathbb{R})$
88221
Find the center of the group $\operatorname{GL}(n,\mathbb R)$ of invertible $n \times n$ matrices.
98352
If $k|n$, then $D_{2n}/\langle{r^k}\rangle\cong D_{2k}$
110217
$GL(n,K)$ is open in $M(n,K)$
102871
$\langle r\rangle$ maximal $\iff r$ irreducible
115782
Proof $\mathbb{A}^n$ is irreducible, without Nullstellensatz
130937
Embeddings of finite groups into $\mathrm{GL}_n(\mathbb{Z})$
30637
Exponent of $GL(n,q)$.
27056
$ gl(2,\mathbb C) \cong sl(2,\mathbb C) \oplus \mathbb C $
51889
How to "find" this Lie algebra: proof that $\mathfrak{sl}$ is trace zero matrices
76962
Sylow $p$-subgroups of $GL_n(\mathbb{F}_p)$
28934
Presentation of SL$(n,\mathbb{Z}_p)$