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1 vote
0 answers
52 views

List of automorphism groups of low-dimensional complex commutative algebras?

5 votes
1 answer
157 views

Retract of a product

7 votes
1 answer
440 views

Conjugation of the quotient of $\mathrm{SL}(n,\mathbb{C})$ by a finite subgroup

6 votes
1 answer
226 views

A Tate resolution for $\Sigma_p$ - Reference request

2 votes
0 answers
29 views

proper retract of a limit group

3 votes
0 answers
95 views

Assigning a finite number, $n(G)$, to an elementary amenable group $G$ with $\operatorname{cd}G<\infty$

4 votes
2 answers
322 views

Splitting field for $\mathrm{GL}(2,p)$ - reference request

3 votes
1 answer
110 views

Generating $\mathbf{PGL}_2(\mathbb{Z})$ and $\mathbf{PGL}_2(\mathbb{Q})$

0 votes
1 answer
110 views

Classes of groups with finitely many retracts

3 votes
0 answers
183 views

A bridge between the algebraic / differential geometry of $\frak{sl}_2(\mathbb{C})$ and the Sheffer-Appell calculus and combinatorics

1 vote
0 answers
143 views

Limit of groups with Kazhdan property (T)

6 votes
1 answer
250 views

Topological generators for $\mathrm{SL}_2(\mathbf{Z}_p)$

-1 votes
0 answers
60 views

What are strategies for determining the action used in a semidirect product? I'n particular I'm trying to consider $E_q^3:GL_2(q)$ for $q$ even.?

12 votes
1 answer
365 views

abelian quotients of permutation groups

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