User Tony Huynh

10 votes

Maximum number of distinct diagonals generated by permutations

answered Aug 9, 2010 at 12:18

10 votes

Accepted

Unique way to partition into two parts of equal weight

answered Apr 27, 2010 at 19:06

10 votes

Accepted

Minor-closed classes of graphs with large numbers of excluded minors

answered Jun 15, 2012 at 20:18

9 votes

Accepted

A minimum set hitting every base of a matroid

answered May 21, 2012 at 2:33

9 votes

Partitioning a Rectangle into Congruent Isosceles Triangles

answered Nov 6, 2010 at 0:17

9 votes

Ingenuity in mathematics

answered Sep 28, 2010 at 17:25

9 votes

How does an academic mathematician educate him/herself about job opportunities outside academia?

answered May 5, 2010 at 3:36

9 votes

Proofs by induction

answered Apr 18, 2010 at 5:12

9 votes

Gauss-Bonnet Theorem for Graphs?

answered May 28, 2010 at 16:27

9 votes

Embedding planar graphs into the grid

answered Sep 24, 2015 at 14:04

9 votes

Which journals publish short notes in discrete mathematics?

answered Oct 10, 2015 at 21:02

9 votes

Accepted

Finite subsets of $S\subseteq \mathbb{N}$ such that $S\setminus\{s\}$ can be partitioned with equal sum

answered Jul 18, 2021 at 4:09

9 votes

What is the smallest uniquely hamiltonian graph with minimum degree at least 3?

answered Nov 28, 2016 at 9:52

8 votes

Are there an infinite number of integers $n$ such that $n, n+1$, and $n+2$ have the same number of divisors?

answered Jul 16, 2016 at 12:22

8 votes

Maximum number of perfect matchings in a planar graph?

answered Jul 5, 2017 at 21:08

8 votes

Accepted

Disjoint paths between four vertices

answered Apr 5, 2019 at 9:54

8 votes

The Sudoku game: Solver-Spoiler variation

answered Apr 23, 2018 at 13:38

8 votes

Erdős multiplication problem revisited

answered Jul 29, 2021 at 10:23

8 votes

Golden ratio in contemporary mathematics

answered Sep 5, 2021 at 2:39

8 votes

Accepted

Isometric embeddings of metric $K_{n+1}$ in $\mathbb{R}^n$

answered Nov 27, 2023 at 16:54

8 votes

Accepted

Given a 3-connected graph $G$, is there an edge $e$ so that both $G-e$ and $G/e$ are still 3-connected?

answered Feb 13 at 10:42

8 votes

Accepted

Segments on a family of parallel lines

answered Apr 13, 2015 at 1:10

8 votes

Reference request: monochromatic paths in edge-colored complete graphs

answered Apr 15, 2015 at 17:04

8 votes

Variation on the Subset Sum Problem

answered Jan 26, 2016 at 19:26

8 votes

Minimal "subset" of a set of homogeneous polynomials with same solution space

answered Feb 3, 2016 at 13:32

8 votes

Numerical invariants for a graph or its complement that are bounded by some constant

answered Feb 6, 2016 at 22:52

8 votes

Blinking graphs

answered Feb 8, 2016 at 21:21

8 votes

Accepted

What is the relationship between the bramble number and the strict bramble number of a graph?

answered Sep 14, 2013 at 1:56

8 votes

Quadratic Farkas' Lemma?

answered Nov 5, 2012 at 22:25

8 votes

Games that never begin

answered Nov 12, 2012 at 11:53

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475 Answers

Maximum number of distinct diagonals generated by permutations

Unique way to partition into two parts of equal weight

Minor-closed classes of graphs with large numbers of excluded minors

A minimum set hitting every base of a matroid

Partitioning a Rectangle into Congruent Isosceles Triangles

Ingenuity in mathematics

How does an academic mathematician educate him/herself about job opportunities outside academia?

Proofs by induction

Gauss-Bonnet Theorem for Graphs?

Embedding planar graphs into the grid

Which journals publish short notes in discrete mathematics?

Finite subsets of $S\subseteq \mathbb{N}$ such that $S\setminus\{s\}$ can be partitioned with equal sum

What is the smallest uniquely hamiltonian graph with minimum degree at least 3?

Are there an infinite number of integers $n$ such that $n, n+1$, and $n+2$ have the same number of divisors?

Maximum number of perfect matchings in a planar graph?

Disjoint paths between four vertices

The Sudoku game: Solver-Spoiler variation

Erdős multiplication problem revisited

Golden ratio in contemporary mathematics

Isometric embeddings of metric $K_{n+1}$ in $\mathbb{R}^n$

Given a 3-connected graph $G$, is there an edge $e$ so that both $G-e$ and $G/e$ are still 3-connected?

Segments on a family of parallel lines

Reference request: monochromatic paths in edge-colored complete graphs

Variation on the Subset Sum Problem

Minimal "subset" of a set of homogeneous polynomials with same solution space

Numerical invariants for a graph or its complement that are bounded by some constant

Blinking graphs

What is the relationship between the bramble number and the strict bramble number of a graph?

Quadratic Farkas' Lemma?

Games that never begin