User Tony Huynh

6 votes

Proving that a poset is a lattice

answered Sep 28, 2010 at 17:50

6 votes

Possible subsets of reals that equal the set of continuity of a function

answered Oct 2, 2010 at 17:51

5 votes

code that produces all possible trees with n nodes.

answered Jan 18, 2011 at 15:09

5 votes

singly-generated monoids in mathematics

answered Feb 3, 2011 at 3:37

5 votes

Accepted

Edge-objectified graphs

answered Apr 22, 2011 at 0:57

5 votes

Existence of a zero-sum subset

answered Mar 2, 2010 at 16:51

5 votes

"Homotopy-first" courses in algebraic topology

answered Mar 20, 2010 at 16:39

5 votes

Accepted

Representability of polymatroids over $GF(2)$

answered Sep 4, 2010 at 2:35

5 votes

Accepted

When is a triangular matrix totally unimodular?

answered Jun 14, 2010 at 17:37

5 votes

More than $n$ approximately orthonormal vectors in $R^n$

answered Feb 26, 2014 at 0:07

5 votes

Accepted

Chromatic number of the power set

answered Sep 19, 2012 at 9:17

5 votes

Is it possible to have t triangles in some graph on n vertices?

answered Sep 24, 2012 at 5:34

5 votes

Accepted

Small Ramsey numbers and Brooks' Theorem

answered Sep 27, 2012 at 2:18

5 votes

Accepted

Vectors which average to zero over any graph neighborhood

answered Feb 3, 2016 at 19:53

5 votes

Example to show pairwise crossing number is not equal to crossing number

answered Apr 28, 2015 at 17:28

5 votes

How many simple cycles can a graph with $n$ vertices and $m$ edges have?

answered Apr 17, 2015 at 1:00

5 votes

Fair cake-cutting between groups

answered Apr 17, 2015 at 4:27

5 votes

Maximum matchings in infinite graphs

answered Jan 20, 2015 at 13:23

5 votes

Is there a continuous analogue of Ramanujan graphs?

answered Nov 6, 2014 at 2:42

5 votes

Generalization of Sylvester-Gallai theorem

answered Dec 23, 2014 at 14:52

5 votes

Let $G$ be a graph of genus $g$. Is the number of (non necessarily disjoint) 5-clique subgraphs at most $f(g)$ for some function $f$?

answered Feb 29 at 13:13

5 votes

Accepted

Approximation of Hamiltonian cycles

answered Oct 15 at 16:02

5 votes

Minimum number of common edges of triangulations

answered Oct 2, 2023 at 3:19

5 votes

Accepted

Sharp upper bound of the number of edges for graphs of thickness two

answered Oct 2, 2023 at 22:21

5 votes

Accepted

Planar graphs - more or less

answered Sep 19, 2022 at 14:40

5 votes

Distinguishing finite families of sets by algebras of bounded size

answered Nov 19 at 19:54

5 votes

Accepted

What is the significance of ear decompositions for non-graphic matroids?

answered Nov 1, 2020 at 9:23

5 votes

Accepted

Proper graph colorings with similar sized color classes

answered Oct 16, 2021 at 22:44

5 votes

Accepted

The number of $3$-CNF formulas in $n$-variables and the fraction of satisfiable ones

answered Aug 20, 2022 at 18:09

5 votes

Accepted

What's the name of a special vertex coloring

answered May 13, 2021 at 0:56

Stack Exchange Network

475 Answers

Proving that a poset is a lattice

Possible subsets of reals that equal the set of continuity of a function

code that produces all possible trees with n nodes.

singly-generated monoids in mathematics

Edge-objectified graphs

Existence of a zero-sum subset

"Homotopy-first" courses in algebraic topology

Representability of polymatroids over $GF(2)$

When is a triangular matrix totally unimodular?

More than $n$ approximately orthonormal vectors in $R^n$

Chromatic number of the power set

Is it possible to have t triangles in some graph on n vertices?

Small Ramsey numbers and Brooks' Theorem

Vectors which average to zero over any graph neighborhood

Example to show pairwise crossing number is not equal to crossing number

How many simple cycles can a graph with $n$ vertices and $m$ edges have?

Fair cake-cutting between groups

Maximum matchings in infinite graphs

Is there a continuous analogue of Ramanujan graphs?

Generalization of Sylvester-Gallai theorem

Let $G$ be a graph of genus $g$. Is the number of (non necessarily disjoint) 5-clique subgraphs at most $f(g)$ for some function $f$?

Approximation of Hamiltonian cycles

Minimum number of common edges of triangulations

Sharp upper bound of the number of edges for graphs of thickness two

Planar graphs - more or less

Distinguishing finite families of sets by algebras of bounded size

What is the significance of ear decompositions for non-graphic matroids?

Proper graph colorings with similar sized color classes

The number of $3$-CNF formulas in $n$-variables and the fraction of satisfiable ones

What's the name of a special vertex coloring