User Denis Osin

Denis Osin

Member for 13 years, 6 months
Last seen more than 3 years ago

math.vanderbilt.edu/people/…
Nashville, USA

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14 Answers

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38 votes

Accepted

Finitely presented infinite group with no element of infinite order?

answered Oct 18, 2011 at 21:40

19 votes

Accepted

HNN Embedding Theorem for Amenable Groups?

answered Sep 24, 2011 at 5:17

18 votes

Accepted

Amenable groups not containing free semigroups

answered Feb 27, 2011 at 5:33

17 votes

Right Angled Artin Group Reference request

answered Oct 5, 2012 at 19:11

12 votes

Accepted

Is there an i.c.c. nonamenable simple group that is inner amenable?

answered Dec 2, 2010 at 22:17

11 votes

Accepted

does this group have a name?

answered Dec 3, 2010 at 1:15

11 votes

Accepted

Finitely generated, infinite, residually finite groups whose finite quotients are $p$-groups.

answered Nov 22, 2010 at 20:45

10 votes

residually finite-by-$\mathbb{Z}$ groups are residually finite

answered Oct 18, 2011 at 18:01

8 votes

Accepted

Normal subgroup that is invariant under powering such that the quotient group is not invariant

answered Feb 12, 2013 at 20:39

8 votes

Characteristic subgroup of uniquely p-divisible group that is not uniquely p-divisible

answered Feb 27, 2011 at 7:02

8 votes

Is there a non-Hopfian lacunary hyperbolic group?

answered Sep 28, 2011 at 20:17

7 votes

Accepted

F.p. groups where all elements of the same order are conjugate

answered Oct 30, 2011 at 19:22

4 votes

Accepted

Quasi-isometry classes of elementary amenable groups

answered Dec 13, 2013 at 21:40

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14 Answers

Finitely presented infinite group with no element of infinite order?

HNN Embedding Theorem for Amenable Groups?

Amenable groups not containing free semigroups

More open problems

Right Angled Artin Group Reference request

Is there an i.c.c. nonamenable simple group that is inner amenable?

does this group have a name?

Finitely generated, infinite, residually finite groups whose finite quotients are $p$-groups.

residually finite-by-$\mathbb{Z}$ groups are residually finite

Normal subgroup that is invariant under powering such that the quotient group is not invariant

Characteristic subgroup of uniquely p-divisible group that is not uniquely p-divisible

Is there a non-Hopfian lacunary hyperbolic group?

F.p. groups where all elements of the same order are conjugate

Quasi-isometry classes of elementary amenable groups