Felix Goldberg's user avatar
Felix Goldberg's user avatar
Felix Goldberg's user avatar
Felix Goldberg
  • Member for 12 years
  • Last seen more than a week ago
64 votes
5 answers
16k views

The unreasonable effectiveness of Padé approximation

20 votes
1 answer
4k views

What have simplicial complexes ever done for graph theory?

13 votes
2 answers
911 views

Computing a large permanent

12 votes
4 answers
3k views

What are the major open problems in design theory nowaday?

11 votes
5 answers
2k views

Are all almost regular graphs obvious?

11 votes
3 answers
858 views

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

10 votes
1 answer
436 views

Probability that a random distance function is metric

9 votes
1 answer
405 views

Coherence between different ranking methods of a graph's vertices

8 votes
2 answers
1k views

Motivation for Frankl's conjecture?

8 votes
1 answer
323 views

Spectral lower bounds on the diameter of a graph

8 votes
1 answer
307 views

A conjecture about strongly regular graphs

8 votes
1 answer
907 views

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

7 votes
1 answer
488 views

Full-rank factorization of the graph Laplacian

7 votes
1 answer
216 views

Least-squares solution of systems of Sylvester equations

7 votes
6 answers
3k views

Efficient Hamiltonian cycle algorithms for graph classes

7 votes
2 answers
11k views

Cramer's rule for eigenvectors

7 votes
4 answers
2k views

A generalization of Catalan numbers

6 votes
0 answers
2k views

When is the inverse diagonally dominant?

6 votes
0 answers
482 views

concentration for eigenvectors

6 votes
0 answers
277 views

Largest entry of the inverse matrix?

6 votes
1 answer
336 views

Hamiltonian cycles in power-graphs

6 votes
1 answer
383 views

What is/are the best bound/s on the sum of squares of degrees in a graph?

6 votes
1 answer
227 views

Hamiltonicity criteria for sparse graphs

6 votes
3 answers
448 views

Isomorphism testing in STS(13)

5 votes
0 answers
136 views

Minimum of the product of linear forms over a lattice

5 votes
1 answer
287 views

Graphs with constant edge imbalance

5 votes
1 answer
275 views

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

5 votes
1 answer
662 views

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

5 votes
1 answer
352 views

power laws emerging from the sandpile model

5 votes
1 answer
1k views

How many distinct eigenvalues does a random graph have?

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