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Andreas Thom

Dresden, Germany

https://tu-dresden.de/mn/math/geometrie/thom

I am a mathematician working at Technische Universität Dresden.

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Top Questions
67 votes

Nelson's program to show inconsistency of ZF

lo.logic reference-request arithmetic ultrafinitism math-philosophy asked Aug 25, 2010 at 20:50
mathoverflow.net

54 votes

How many relations of length $n$ can exists in a group without enforcing shorter relations?

gr.group-theory asked Feb 17, 2011 at 14:22
mathoverflow.net

43 votes

What is Realistic Mathematics?

lo.logic math-philosophy model-theory big-picture big-list asked Aug 7, 2010 at 16:07
mathoverflow.net

41 votes

Why is "P vs. NP" necessarily relevant?

graph-theory algorithms computational-complexity graph-colorings np asked Feb 3, 2011 at 21:04
mathoverflow.net

40 votes

Identities of commutators

gr.group-theory universal-algebra asked Mar 11, 2016 at 10:07
mathoverflow.net

33 votes

Subalgebras of von Neumann algebras

oa.operator-algebras fa.functional-analysis asked Aug 5, 2010 at 21:40
mathoverflow.net

29 votes

Adjacency matrices of graphs

graph-theory matrices asked Jan 15, 2011 at 16:32
mathoverflow.net

28 votes

Furstenberg's Conjecture on 2-3-invariant continuous probability measures on the circle

ergodic-theory measure-theory fourier-analysis fa.functional-analysis open-problem asked Oct 30, 2010 at 10:32
mathoverflow.net

28 votes

Trees in groups of exponential growth

gr.group-theory open-problem geometric-group-theory asked Mar 29, 2011 at 19:16
mathoverflow.net

27 votes

Finite-dimensional subalgebras of $C^\star$-algebras

oa.operator-algebras c-star-algebras von-neumann-algebras open-problem asked Aug 11, 2010 at 9:49
mathoverflow.net

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Top Answers
52
morphism from a compact group to Z ?
mathoverflow.net

50
How feasible is it to prove Kazhdan's property (T) by a computer?
mathoverflow.net

50
Are semi-direct products categorical (co)limits?
mathoverflow.net

48
Example for column rank $\neq$ row rank
mathoverflow.net

41
Are there only countably many compact topological manifolds?
mathoverflow.net

31
On the size of balls in Cayley graphs
mathoverflow.net

28
Which finite groups have faithful complex irreducible representations?
mathoverflow.net

27
products of conjugates in free groups
mathoverflow.net

21
Central Limit Theorem(s) for irrational rotation
mathoverflow.net

21
Proofs that require fundamentally new ways of thinking
mathoverflow.net

20
Groups where word problem is solvable, but not quickly?
mathoverflow.net

20
Is any connected fibre of a fibration of a sphere also a sphere?
mathoverflow.net

20
`Naturally occuring' $K(\pi, n)$ spaces, for $n \geq 2$.
mathoverflow.net

19
Can two rational rotations $F_2 = \langle A, B \rangle \to SO(3)$ efficiently approximate the $3 \times 3$ identity matrix?
mathoverflow.net

18
Properties of a non-sofic group
mathoverflow.net

18
Proofs that require fundamentally new ways of thinking
mathoverflow.net

17
Why does the Grothendieck group $K_0(R)$ of a ring not depend on our choice of using left modules instead of right modules?
mathoverflow.net

17
(Non)free differential calculus
mathoverflow.net

16
Is a map a homotopy equivalence if its suspension is so?
mathoverflow.net

15
No injective groups with more than one element?
mathoverflow.net

15
contractible manifolds
mathoverflow.net

15
Distributivity of group topologies on $\Bbb Z$
mathoverflow.net

14
Discrete-compact duality for nonabelian groups
mathoverflow.net

14
Centraliser of the complex conjugation in the absolute Galois group
mathoverflow.net

14
Non-abelian Grothendieck group
mathoverflow.net

14
Solving equations in SO(3) : an open problem by Jan Mycielski
mathoverflow.net

13
Is $SU(\infty)$ amenable?
mathoverflow.net

13
Is the group von Neumann algebra construction functorial?
mathoverflow.net

13
What is the commutative analogue of a C*-subalgebra?
mathoverflow.net

13
A non-trivial property of all groups
mathoverflow.net

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