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 36.2k●2●116●179

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The NP version of Matiyasevich’s theorem

jul 20 11 at 14:57 François G. Dorais♦ 22.4k●2●48●113

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

mar 19 12 at 3:31 Mark Sapir 27.6k●2●57●118

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A non-trivial property of all groups

mar 14 12 at 0:49 Mark Sapir 27.6k●2●57●118

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Why are operads useful?

aug 13 11 at 3:49 Mark Sapir 27.6k●2●57●118

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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 27.6k●2●57●118

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313

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
Give an example of monoid with property $m^2 = m^3$
17
Existence of finite index torsion free subgroups of hyperbolic groups
16
Noteworthy achievements in and around 2010?
16
G = [G,G] with two generators
16
Is the free product of arbitrarily many copies of `${\mathbb{Z}}$` and `${\mathbb{Z}}/2$` residually nilpotent?
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
12
A subgroup intersects every conjugacy class
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