User Tony Huynh

2 votes

Schoenberg's rational polygon problem

answered Oct 12, 2014 at 22:54

2 votes

What are the most fundamental classes of mathematical algorithms?

answered Jun 9, 2010 at 14:56

2 votes

Upper bound for the number of subsets of N points which exhaust their convex hull

answered Jun 9, 2010 at 22:58

2 votes

Infinite games: are they well defined?

answered Jul 16, 2010 at 14:50

2 votes

Accepted

Acyclicity equivalent to unique paths

answered May 7, 2010 at 20:20

2 votes

Complete vertex invariants

answered May 13, 2010 at 21:59

2 votes

Proving edge connectivity

answered May 15, 2010 at 19:30

2 votes

Accepted

Maximum size of antichain if no m subsets have a common intersection of size n

answered Apr 8, 2010 at 2:09

2 votes

infinite permutations

answered Mar 9, 2010 at 21:38

2 votes

Graphs where every two vertices have odd number of mutual neighbours

answered Mar 11, 2010 at 7:01

2 votes

number of ribbon structures (or punctured surfaces) on a graph

answered Apr 14, 2011 at 0:48

2 votes

Breaking frustrated loops in list coloring problem

answered Jan 10, 2011 at 16:31

2 votes

Is there a similar formula in spherical and hyperbolic geometry as Euclidean Geometry?

answered Oct 26, 2011 at 15:37

2 votes

Spanning trees of $H \cup e$ in terms of $H$

answered Sep 13, 2011 at 9:05

2 votes

Accepted

In what probability does cospectra of Cayley graph imply isomorphism of the corresponding group

answered Jul 1, 2012 at 8:31

2 votes

Number of invertible {0,1} real matrices?

answered Mar 23, 2012 at 11:28

2 votes

Accepted

Testing connectivity when deleting an edge

answered Jan 18, 2011 at 15:17

2 votes

linear ordering of color balls

answered Nov 6, 2010 at 12:21

2 votes

Labelled spanning trees without edge crossings

answered Dec 12, 2010 at 20:55

2 votes

Basic results with three or more hypotheses

answered Oct 22, 2010 at 16:39

2 votes

Graphs having unique hamiltonian paths between exactly 4 pair of vertices

answered Oct 27, 2010 at 10:56

2 votes

Examples of theorems arising from many authors' work

answered Sep 29, 2010 at 0:39

1 vote

edges minus vertices

answered Sep 28, 2010 at 18:00

1 vote

describe subsets of the integers closed under the binary operation Ax+By

answered Oct 27, 2010 at 23:54

1 vote

"incidental" intersections of a complete graph in the plane

answered Oct 21, 2010 at 14:51

1 vote

Partitioning the 3-sets of [n]={1,...,n} into families

answered Oct 19, 2010 at 12:40

1 vote

Compute number vertex disjoint cycles in graph surrounding a face

answered Oct 2, 2010 at 21:32

1 vote

Arrow's theorem and the postseason

answered Oct 2, 2010 at 22:16

1 vote

Two Equal Series?

answered Dec 10, 2010 at 21:37

1 vote

There is mathematics behind the 1989 Tour de France !

answered Jan 6, 2011 at 13:44

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475 Answers

Schoenberg's rational polygon problem

What are the most fundamental classes of mathematical algorithms?

Upper bound for the number of subsets of N points which exhaust their convex hull

Infinite games: are they well defined?

Acyclicity equivalent to unique paths

Complete vertex invariants

Proving edge connectivity

Maximum size of antichain if no m subsets have a common intersection of size n

infinite permutations

Graphs where every two vertices have odd number of mutual neighbours

number of ribbon structures (or punctured surfaces) on a graph

Breaking frustrated loops in list coloring problem

Is there a similar formula in spherical and hyperbolic geometry as Euclidean Geometry?

Spanning trees of $H \cup e$ in terms of $H$

In what probability does cospectra of Cayley graph imply isomorphism of the corresponding group

Number of invertible {0,1} real matrices?

Testing connectivity when deleting an edge

linear ordering of color balls

Labelled spanning trees without edge crossings

Basic results with three or more hypotheses

Graphs having unique hamiltonian paths between exactly 4 pair of vertices

Examples of theorems arising from many authors' work

edges minus vertices

describe subsets of the integers closed under the binary operation Ax+By

"incidental" intersections of a complete graph in the plane

Partitioning the 3-sets of [n]={1,...,n} into families

Compute number vertex disjoint cycles in graph surrounding a face

Arrow's theorem and the postseason

Two Equal Series?

There is mathematics behind the 1989 Tour de France !