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23
Answers
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26
Important formulas in Combinatorics
Aug 19 at 15:49
24
Examples of unexpected mathematical images
Aug 9 '14 at 7:55
19
New grand projects in contemporary math
Dec 31 '12 at 16:23
14
Elementary applications of linear algebra over finite fields
Jan 14 '13 at 17:39
6
Bijective proof of an Abel-Hurwitz-type identity
Nov 4 '14 at 3:31
6
Why is the identity element of the sandpile group self-similar?
Nov 25 '13 at 20:16
4
Most intriguing mathematical epigraphs
Oct 2 at 14:24
4
Important open problems that have already been reduced to a finite but infeasible amount of computation
May 15 at 13:51
4
Mathematicians who made important contributions outside their own field?
Jul 4 '14 at 14:21
4
Geometric RSK correspondece and classical RSK correspondence
Jun 19 '14 at 11:20
4
Which popular games are the most mathematical?
May 23 '14 at 18:45
4
Why is the right permutohedron order (aka weak order) on $S_n$ a lattice?
Feb 28 '14 at 4:53
4
A generalization of Catalan numbers
Dec 4 '13 at 1:04
3
Combinatorial polynomials from general diagram fillings?
May 5 at 18:33
3
Structures that turn out to exhibit a symmetry even though their definition doesn't
Dec 13 '13 at 23:01
2
Important formulas in Combinatorics
Oct 5 at 17:00
2
Dynamics of RSK
Mar 12 at 0:39
2
Duration and critical groups order in sandpile models and chip firing games
Aug 15 '14 at 6:44
2
Definition of infinite permutations
Feb 24 '14 at 3:50
2
Proof by `universal receiver'
Dec 20 '13 at 17:44
1
Functions representable as a sum of two permutations of Z/nZ
Dec 24 '14 at 22:37
1
Is there a natural notion of completion of a Coxeter system?
Mar 18 '14 at 15:16
0
Number of regions of a hyperplane arrangement avoiding a generic hyperplane
Jan 14 at 18:02
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