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
17 votes

Does your dissertation matter for industry research jobs?

16 votes

When should I publish my results?

15 votes

Sherman-Morrison type formula for Moore-Penrose pseudoinverse

14 votes
Accepted

Is every distance-regular graph vertex-transitive?

10 votes

Upper bounds on eigenvalues of PSD matrix?

10 votes

Silly me & Van der Waerden conjecture

9 votes
Accepted

Hadamard-like inequalites for positive definite symmetric matrices

6 votes

Applications of group theory to mathematical biology (pharmacology)

5 votes

Neat results from algebraic graph theory

5 votes

How to quantify noncommutativity?

5 votes

A conjecture about strongly regular graphs

5 votes
Accepted

eigenvalue estimate of the adjacency matrix

4 votes

NP-hard problems in linear algebra and real analysis

4 votes
Accepted

Doubly stochastic matrices as squares of entires of unitary matrices

4 votes

Eigenvalues of the sum of a positive matrix and a positive rank-$1$ matrix

4 votes

what are the conditions for the product of 2 symmetric matrices being symmetric

4 votes

Matrices whose inverse is positive

4 votes
Accepted

Linear maps preserving positive semidefiniteness

3 votes

Characterizing invertible matrices with {0,1} entries

3 votes

Almost-converses to the AM-GM inequality

3 votes

Eigenvalues of non-symmetric matrix and its transpose

3 votes

Linear algebra proofs in combinatorics?

3 votes

Eigenvalues of a Symmetric Positive Semi-Definite (PSD) matrix after rank one update

2 votes
Accepted

Bound on smallest entry of inverse matrix

2 votes

Lower bounds for the singular values of submatrices of othogonal matrices

2 votes

Rank changes with matrix edits

2 votes

Effect of different graph operations on spectrum of graph laplacian?

2 votes

Calculating the Perron-Frobenius eigenvector of a positive matrix from limited information

2 votes

bilinear equation OR diagonal matrix search

2 votes

Game on undirected graphs