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Apr
7
comment Infinite quotient with finitely many torsion elements
@DerekHolt, oh yes, thanks a lot! Is it easy to see whether polycyclic groups satisfy this property I asked above?
Apr
7
comment Infinite quotient with finitely many torsion elements
@DerekHolt, thanks, I am not aware of this fact on nilpotent groups. btw, is it known that torsion elements in a polycyclic group also form a subgroup?
Apr
7
asked Infinite quotient with finitely many torsion elements
Mar
22
awarded  Self-Learner
Mar
21
comment ``angle" between two group elements
@Rob, thanks! it seems different from what I expect...
Mar
21
comment ``angle" between two group elements
yes, so I include the question on defining the notion of ``cone" for a general countable discrete group.
Mar
21
asked ``angle" between two group elements
Jan
13
awarded  Popular Question
Oct
18
asked write down a concrete 2-coboundary
Oct
16
awarded  Yearling
Jul
24
accepted Infinite primes represented by a power function?
Jun
11
awarded  Revival
Apr
11
revised approximate vanishing in Pontryagin dual
Fix typo
Apr
11
revised approximate vanishing in Pontryagin dual
Fix typo
Mar
31
accepted approximate vanishing in Pontryagin dual
Mar
31
comment approximate vanishing in Pontryagin dual
thanks for your interest in this problem, hope you can obtain some nice results on it! Right now, i have to I work on something else, but if I can help you in any way, please let me know. Thanks again!!!
Mar
29
revised approximate vanishing in Pontryagin dual
Fix typo
Mar
29
answered approximate vanishing in Pontryagin dual
Mar
29
comment approximate vanishing in Pontryagin dual
thank you very much!! Indeed, this question arose from a failed attempt to solve a research problem. The original problem is still not solved, maybe it is still interesting for you, so let me mention it below.
Mar
24
revised approximate vanishing in Pontryagin dual
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