Benjamin Steinberg's user avatar
Benjamin Steinberg's user avatar
Benjamin Steinberg's user avatar
Benjamin Steinberg
  • Member for 12 years, 9 months
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83 votes
59 answers
11k views

Blackbox Theorems [closed]

41 votes
4 answers
2k views

What is the probability two random maps on n symbols commute?

37 votes
0 answers
1k views

Groups whose complex irreducible representations are finite dimensional

31 votes
3 answers
4k views

Why did Gabriel invent the term "quiver"?

29 votes
3 answers
4k views

Lawvere theories versus classical universal algebra

22 votes
4 answers
4k views

What is the main goal of a paper, really? [closed]

22 votes
2 answers
1k views

Toposes (topoi) as classifying toposes of groupoids

18 votes
2 answers
992 views

Is there a topos theoretic interpretation/proof of Quillen's Theorem A?

18 votes
1 answer
946 views

Can there exist a `natural' finitely generated group with an undecidable word problem?

16 votes
2 answers
981 views

Does the following condition imply the homotopy type of a wedge of spheres?

16 votes
2 answers
792 views

Decomposing $(\mathbb C^n)^{\otimes m}$ as a representation of $S_n\times S_m$

15 votes
2 answers
831 views

Is there a finitely generated residually finite group with solvable word problem that does not embed in a finitely presented residually finite group?

15 votes
1 answer
2k views

History of the notation $\mathbb Z_n$

15 votes
2 answers
965 views

Groups with a rational generating function for the word problem

14 votes
1 answer
585 views

Is choice needed to establish the existence of idempotent ultrafilters?

14 votes
1 answer
558 views

Group rings such that every (countably generated) module has a maximal submodule

12 votes
0 answers
388 views

What is an example of a word hyperbolic group without a finite complete rewriting system?

12 votes
3 answers
833 views

Applications of idempotent ultrafilters

12 votes
1 answer
723 views

Is the following construction of the 0-Hecke monoid (well) known?

12 votes
2 answers
1k views

The generalized word problem vs. the uniform generalized word problem

12 votes
0 answers
311 views

Combinatorial proof of invertibility of a symmetric matrix associated to the ring of matrices over a finite field

11 votes
8 answers
986 views

Interesting examples of generic behavior of mathematical objects being either unreasonably structured or simply unreasonable

10 votes
1 answer
262 views

A flatness result of Fiedorwicz for amalgamated free products of monoids in connection with classifying spaces of monoids

9 votes
3 answers
372 views

Is there a standard name for the following type of linear operator?

9 votes
1 answer
2k views

Terminology Concerning Oriented Simplicial Complexes

8 votes
1 answer
412 views

Cayley Graphs of Z/nZ with invertible adjacency matrices

8 votes
0 answers
383 views

Complexity of computing the minimum degree of a faithful linear representation of a finite group

8 votes
2 answers
413 views

Is there a general result that theorems about finite structures proved in ZFC can be proved in ZF?

8 votes
1 answer
775 views

How to recognize a finite dimensional algebra is Koszul or quadratic?

8 votes
1 answer
634 views

Growth of groups versus Schreier graphs