Mark Sapir

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Name Mark Sapir
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Location Nashville, TN
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Professor of Mathematics at Vanderbilt University
68

Questions
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New arXiv procedures?

may 15 at 19:33 Greg Kuperberg 32.6k●2●102●163

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The NP version of Matiyasevich’s theorem

jul 20 at 14:57 François G. Dorais♦ 18.4k●1●40●90

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Invertible matrices satisfying $[x,y,y]=x$.

mar 19 at 3:31 Mark Sapir 22.7k●2●52●107

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A non-trivial property of all groups

mar 14 at 0:49 Mark Sapir 22.7k●2●52●107

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Why are operads useful?

aug 13 at 3:49 Mark Sapir 22.7k●2●52●107

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The Wronskian of sin(kx) and cos(kx), k=1…n

may 12 at 21:23 Mark Sapir 22.7k●2●52●107

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Shape of snowflakes

mar 14 at 13:56 Michal Oszmaniec 551●3●10

1 2 3 4 5 … 7 next

 

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Answers
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28
Is Thompson’s Group F amenable?
21
Is it decidable whether or not a collection of integer matrices generates a free group?
19
Submission of a paper with a serious error to a good journal
18
Group which “resembles” the free product of a cyclic group of order two and a cyclic group of order three, but isn’t.
18
A synopsis of Adyan’s solution to the general Burnside problem?
18
Power of two plus integer is not prime
16
Is the free product of arbitrarily many copies of `${\mathbb{Z}}$` and `${\mathbb{Z}}/2$` residually nilpotent?
16
The Higman group
16
Does the amenability problem for Thompson’s group $F$ predate 1980?
16
Existence of finite index torsion free subgroups of hyperbolic groups
15
Give an example of monoid with property $m^2 = m^3$
15
subwords of the fibonacci word
15
G = [G,G] with two generators
14
Is the property of not containing $\mathbb{F}_2$ invariant under quasi-isometry?
13
Noteworthy achievements in and around 2010?
13
Higman embedding theorem
13
Profinite completion of a semidirect product
13
Early Two-Author Math Papers
12
When is a finitely generated group finitely presented?
12
Algebraic P vs. NP (2)
12
Margulis normal subgroup theorem
12
Is there an amenabilization of groups ?
12
A question on the set of element orders of a finite group
12
Quotients of f.p. amenable groups
12
Groups where every two generator subgroup is free
11
A subgroup intersects every conjugacy class
11
Centerlessness of reduced free group
11
Is there a commutator-theoretic criterion for supersolvability of a group?
11
The free group $F_2$ has index 12 in SL(2,$\mathbb{Z}$)
11
presentations of the trivial group
1 2 3 4 5 … 9 next

 

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