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Geoff Robinson's user avatar
Geoff Robinson's user avatar
Geoff Robinson's user avatar
Geoff Robinson
  • Member for 14 years, 11 months
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  • United Kingdom
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Top posts

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67
Why can't a nonabelian group be 75% abelian?
Jul 9, 2015
45
How large can the smallest generating set of a group $G$ of order $n$ be?
Dec 3, 2015
43
Does a finite simple group of order divisible by $60$ have $A_{5}$ as a subgroup?
May 23, 2014
42
Is this generalized character always a character?
Sep 9, 2024
37
Determinant of sum of positive definite matrices
May 19, 2011
36
Properties to have matrices that commute in $\mathrm{GL}_n(\mathbb C)$
Apr 19, 2014
33
Eigenvalues of nonnegative integer matrices
Nov 16, 2012
31
Groups that do not exist
Dec 8, 2012
28
Is each squared finite group trivial?
Feb 19, 2021
28
Character-free proof that Frobenius kernel is a normal subgroup?
Apr 27, 2011

Top network posts

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101
Is it true that $0.999999999\ldots=1$?
65
The identity cannot be a commutator in a Banach algebra?
35
How to prove that $\mathbb{Q}[\sqrt{p_1}, \sqrt{p_2}, \ldots,\sqrt{p_n} ] = \mathbb{Q}[\sqrt{p_1}+ \sqrt{p_2}+\cdots + \sqrt{p_n}]$, for $p_i$ prime?
29
proper subgroups of finite p-groups are properly contained in the normalizer
24
Upper bounds on the size of $\operatorname{Aut}(G)$