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2
Eigenvalues of Symmetric Tridiagonal Matrices
5
Do you set a one or two commas when using \mapsto?
3
Rigid Strongly Regular Graphs
3
Spectrum of composition of graphs( lexicographic product)
1
signs of eigenvalues
5
A short question about the DFT matrix
4
signing a strongly regular graph
2
When can a matrix with negative entries have a completely non-negative dominant eigenvector?
4
Non symmetric matrices with real eigenvalues
2
Eigenvalues of principle minors Vs. eigenvalues of the matrix
0
Is there any relation between automorphism group of a Cayley graph over a group and over its subgroup?
4
On duality on finite projective planes
3
The number of non-isomorphic strongly regular graphs on n vertices
4
Full-rank linearly independent matrices
6
coincidence between minimal triangulation numbers and chromatic numbers
1
Godsil-Mckay switching applied on the Paley graph
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Strongly regular graphs with the same parameters as Paley graph
3
Mathematical “proof” of the stability of atoms?
8
About writing of mathematical papers
2
Connection between eigenvalues of matrix and its Laplacian.
6
real symmetric matrix has real eigenvalues - elementary proof
4
What are the major open problems in design theory nowaday?
4
Ihara zeta and chromatic number of graphs
2
power of adjacency matrix
2
Finding a subspace disjoint from a union of subspaces
2
The cliques of cospectral graphs
4
The smallest eigenvalue from an equitable partitions
3
Difference of the maximum eigenvalue of a graph with the one of one-edge-deleted subgraph
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are there pairs of combinatorial graphs that are both isospectral and have the same matroid?
3
Shannon capacity determined by $\alpha(G)$ and $\chi^*(\bar{G})$???
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