10
votes
Can automorphism equivalence in a free group be detected in a nilpotent quotient?
gr.group-theory
free-groups
nilpotent-groups
automorphisms
asked Dec 19, 2023 at 18:37
mathoverflow.net
10
votes
Continuous Brouwer's fixed point theorem via Stokes's theorem?
analysis
fixed-point-theorems
asked Sep 12, 2012 at 8:48
math.stackexchange.com
9
votes
When is there a unique perfect group of order $n$?
gr.group-theory
finite-groups
asked Jan 14, 2020 at 15:51
mathoverflow.net
9
votes
Finite-index iff positive density?
gr.group-theory
random-walk
asked Jul 4, 2016 at 22:24
mathoverflow.net
7
votes
Extension-field subgroups of $\operatorname{GL}(n, K)$
gr.group-theory
ra.rings-and-algebras
asked Jun 30, 2018 at 9:34
mathoverflow.net
7
votes
What does the Haar measure on $\hat{\mathbf{Z}}$ look like?
number-theory
measure-theory
p-adic-number-theory
asked Mar 24, 2012 at 14:02
math.stackexchange.com
6
votes
Harmonic functions on $\mathbf{Z}^2$
group-theory
harmonic-analysis
asked Sep 29, 2012 at 11:30
math.stackexchange.com
6
votes
Kahn-Kalai-Linial for intersecting upsets
co.combinatorics
fourier-analysis
asked Aug 20, 2012 at 11:30
mathoverflow.net
6
votes
Finite-by-torsion-free abelian groups (or compact abelian groups with finitely many components)
gr.group-theory
abelian-groups
asked Jan 12, 2019 at 11:33
mathoverflow.net
6
votes
Kantor's Singer cycle theorem
gr.group-theory
finite-groups
finite-geometry
asked Jun 22, 2018 at 9:42
mathoverflow.net
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