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MathOverflow
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András Salamon
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graph-theory

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8 posts edited
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Summary Answers Questions Tags Badges Favorites Bounties Reputation All actions

17 Questions

Views Newest Activity Votes
21
33
votes
5
answers
8k
views

Are nontrivial integer solutions known for $x^3+y^3+z^3=3$?

diophantine-equations nt.number-theory reference-request open-problems
Sep 9 at 13:31 David Roberts 25.2k
3
17
votes
2
answers
2k
views

Is #k-XORSAT #P-complete?

computational-complexity
Apr 5 '11 at 10:44 András Salamon 2,100
4
15
votes
1
answer
1k
views

Weakest choice principle required for Robertson-Seymour Graph Minor Theorem?

reverse-math lo.logic set-theory axiom-of-choice graph-theory
Apr 30 '13 at 12:04 Community♦ 1
1
9
votes
3
answers
927
views

In Szemerédi's Regularity Lemma, how many blocks are in the partition?

reference-request co.combinatorics
Apr 12 '14 at 20:41 Jacob Fox 646
3
7
votes
1
answer
342
views

Number of median graphs?

co.combinatorics graph-theory enumerative-combinatorics
Apr 14 at 14:41 Martin Sleziak 3,910
 
7
votes
0
answers
286
views

Universal anti-Horn classes?

reference-request lo.logic model-theory universal-algebra
Apr 23 '15 at 12:05 András Salamon 2,100
1
6
votes
1
answer
407
views

Name for this generalized pigeonhole principle?

reference-request set-theory axiom-of-choice partitions
Nov 26 '12 at 0:10 François G. Dorais♦ 39.8k
4
6
votes
0
answers
302
views

Stable distributions for Lindeberg exchange strategy?

pr.probability universal-property random-matrices asymptotics
Feb 11 '11 at 18:47 András Salamon 2,100
 
5
votes
4
answers
411
views

Better bounds for exact-intersection Erdős–Ko–Rado system?

reference-request co.combinatorics extremal-combinatorics
May 12 '14 at 13:57 Community♦ 1
1
5
votes
1
answer
875
views

Simple lower bounds for Bell numbers (number of set partitions)?

co.combinatorics lower-bounds asymptotics
Dec 28 '12 at 14:22 Community♦ 1
1
4
votes
2
answers
171
views

largest diameter of intersection of two balls

reference-request mg.metric-geometry computational-geometry metric-spaces
Oct 25 '18 at 3:25 Gabe K 1,340
 
4
votes
1
answer
222
views

Do right-profiles determine graphs up to isomorphism?

graph-theory graph-polynomials reference-request co.combinatorics algebraic-graph-theory
Jul 13 '16 at 0:32 Community♦ 1
1
4
votes
3
answers
1k
views

Survey of finite axiomatizability for relational theories?

lo.logic model-theory axioms reference-request universal-algebra
Oct 25 '12 at 15:44 Community♦ 1
1
4
votes
1
answer
609
views

Higher-order preservation theorems?

model-theory lo.logic universal-algebra
Jun 16 '11 at 18:25 Ali Enayat 11.5k
1
3
votes
1
answer
119
views

Is quasivariety generated by all perfect graphs finitely axiomatizable?

lo.logic model-theory universal-algebra
Jul 16 '14 at 10:50 András Salamon 2,100
 
2
votes
1
answer
79
views

Efficiently embedding finite Boolean algebras into lattices of set partitions?

order-theory lattice-theory boolean-algebras
May 2 at 18:19 Daniele Tampieri 932
 
2
votes
1
answer
239
views

A Ramsey-like lower bound?

co.combinatorics ramsey-theory graph-theory graph-colorings
Jul 10 '12 at 21:06 James Cranch 2,824
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