User Felix Goldberg

0 votes

0 answers

49 views

Concentration of bilinear forms

asked Mar 4 at 17:27

2 votes

0 answers

50 views

Properties of the "girth function" of a matroid

asked Apr 26, 2023 at 10:28

1 vote

0 answers

26 views

Adding columns to a binary matroid to make it graphic

asked Apr 20, 2023 at 17:09

1 vote

0 answers

54 views

Are all real-representable matroids binary?

asked Apr 20, 2023 at 16:36

2 votes

1 answer

98 views

Completing a tree to a 2-connected outerplanar graph

asked Jan 31, 2022 at 15:36

2 votes

1 answer

74 views

Column subset selection with least angle optimization

asked Mar 15, 2021 at 15:11

2 votes

1 answer

163 views

Carathéodory's theorem for $SO(3)$?

asked Jun 29, 2016 at 9:05

7 votes

1 answer

216 views

Least-squares solution of systems of Sylvester equations

asked Dec 9, 2015 at 16:42

3 votes

4 answers

1k views

Intrinsic definition of arc length [closed]

asked May 18, 2015 at 5:37

2 votes

0 answers

260 views

How large can a set of nearly equidistant points be?

asked Apr 1, 2015 at 12:42

5 votes

1 answer

352 views

power laws emerging from the sandpile model

asked Mar 16, 2015 at 0:34

1 vote

0 answers

108 views

An exact fraction of a matrix

asked Feb 2, 2015 at 14:30

4 votes

0 answers

241 views

Sets of spreads in graphs

asked Jan 7, 2015 at 10:49

3 votes

1 answer

1k views

Open problems in compressed sensing

asked Dec 20, 2014 at 22:56

11 votes

3 answers

866 views

How many isolated roots can a polynomial in $z$ and $\overline{z}$ have?

asked Oct 25, 2014 at 22:01

2 votes

2 answers

398 views

Does this simple inequality have a name?

asked Sep 17, 2014 at 7:53

8 votes

1 answer

923 views

Can the graph Laplacian be well approximated by a Laplace-Beltrami operator?

asked Aug 30, 2014 at 23:53

8 votes

1 answer

308 views

A conjecture about strongly regular graphs

asked Aug 20, 2014 at 9:12

7 votes

1 answer

489 views

Full-rank factorization of the graph Laplacian

asked Aug 17, 2014 at 14:48

5 votes

1 answer

276 views

Duration and critical groups order in sandpile models and chip firing games

asked Aug 14, 2014 at 14:56

2 votes

2 answers

178 views

Roots of modified polynomials

asked Jun 17, 2014 at 1:14

8 votes

1 answer

325 views

Spectral lower bounds on the diameter of a graph

asked Jun 2, 2014 at 10:28

11 votes

5 answers

2k views

Are all almost regular graphs obvious?

asked May 27, 2014 at 14:03

0 votes

1 answer

181 views

Generalized Helly theorem for $t$-intersecting families

asked May 12, 2014 at 11:09

5 votes

1 answer

672 views

What it is the volume of the unit ball section of the cone of positive definite matrices?

asked Apr 27, 2014 at 7:54

2 votes

1 answer

210 views

Hitting sets (aka covers aka transversals) of Steiner triple systems

asked Apr 4, 2014 at 14:37

2 votes

2 answers

260 views

Which graphs generate a matroidal independence complex?

asked Mar 28, 2014 at 20:07

20 votes

1 answer

4k views

What have simplicial complexes ever done for graph theory?

asked Mar 27, 2014 at 9:52

3 votes

1 answer

157 views

Counting extrema on a simplex

asked Mar 25, 2014 at 10:03

2 votes

0 answers

67 views

Point sets with tangents through every point

asked Mar 23, 2014 at 9:37

Stack Exchange Network

139 Questions

Concentration of bilinear forms

Properties of the "girth function" of a matroid

Adding columns to a binary matroid to make it graphic

Are all real-representable matroids binary?

Completing a tree to a 2-connected outerplanar graph

Column subset selection with least angle optimization

Carathéodory's theorem for $SO(3)$?

Least-squares solution of systems of Sylvester equations

Intrinsic definition of arc length [closed]

How large can a set of nearly equidistant points be?

power laws emerging from the sandpile model

An exact fraction of a matrix

Sets of spreads in graphs

Open problems in compressed sensing

How many isolated roots can a polynomial in $z$ and $\overline{z}$ have?

Does this simple inequality have a name?

Can the graph Laplacian be well approximated by a Laplace-Beltrami operator?

A conjecture about strongly regular graphs

Full-rank factorization of the graph Laplacian

Duration and critical groups order in sandpile models and chip firing games

Roots of modified polynomials

Spectral lower bounds on the diameter of a graph

Are all almost regular graphs obvious?

Generalized Helly theorem for $t$-intersecting families

What it is the volume of the unit ball section of the cone of positive definite matrices?

Hitting sets (aka covers aka transversals) of Steiner triple systems

Which graphs generate a matroidal independence complex?

What have simplicial complexes ever done for graph theory?

Counting extrema on a simplex

Point sets with tangents through every point