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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
81

Questions
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New arXiv procedures?

may 15 12 at 19:33 Greg Kuperberg 36.4k●2●117●179

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The NP version of Matiyasevich’s theorem

jul 20 11 at 14:57 François G. Dorais♦ 23.1k●2●52●116

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

mar 19 12 at 3:31 Mark Sapir 27.9k●2●57●120

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A non-trivial property of all groups

mar 14 12 at 0:49 Mark Sapir 27.9k●2●57●120

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Why are operads useful?

aug 13 11 at 3:49 Mark Sapir 27.9k●2●57●120

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Shape of snowflakes

mar 14 12 at 13:56 Michal Oszmaniec 629●4●11

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

may 12 12 at 21:23 Mark Sapir 27.9k●2●57●120

1 2 3 4 5 … 9 next

 

317

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?
20
Group which “resembles” the free product of a cyclic group of order two and a cyclic group of order three, but isn’t.
19
Submission of a paper with a serious error to a good journal
19
A synopsis of Adyan’s solution to the general Burnside problem?
19
When is a finitely generated group finitely presented?
19
Does the amenability problem for Thompson’s group $F$ predate 1980?
18
The Higman group
18
Power of two plus integer is not prime
17
Is the free product of arbitrarily many copies of `${\mathbb{Z}}$` and `${\mathbb{Z}}/2$` residually nilpotent?
17
Give an example of monoid with property $m^2 = m^3$
17
Existence of finite index torsion free subgroups of hyperbolic groups
17
First-order axiomatization of free groups
16
G = [G,G] with two generators
16
Noteworthy achievements in and around 2010?
15
Groups where every two generator subgroup is free
15
Groups with irreducible representations of the largest possible dimension
15
subwords of the fibonacci word
14
Early Two-Author Math Papers
14
Is the property of not containing $\mathbb{F}_2$ invariant under quasi-isometry?
14
Existence of unknowable algorithms ?
13
A question on the set of element orders of a finite group
13
Higman embedding theorem
13
Algebraic P vs. NP (2)
13
Profinite completion of a semidirect product
13
Margulis normal subgroup theorem
12
Decidability in Groups
12
Is there an amenabilization of groups ?
12
A free subgroup of GL(2,Z)?
12
Quotients of f.p. amenable groups
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