Chris Godsil

less info
meta site favicon meta user | stack exchange network profile network profile
2,824 reputation
215
bio website
location
age
visits member for 1 year, 8 months
seen 41 mins ago
stats profile views 351

90 Answers

newest activity votes
9
Trajectories on the $k$-dimensional torus
7
Motivation for spectral graph theory.
6
Vertex Clique Cover and Chromatic Number
5
Permutation Groups
4
transitivity of commutator
4
Spectrum of a 3-regular graph
4
Short proof for the non-Hamiltonicity of the Petersen Graph
4
Using shortest paths as graph invarients for isomorphism. Where does the method fail?
4
General questions on Cayley graphs
4
Graphs with eigenvalues of large multiplicity
4
Every point on the unit sphere has distance at most $d$ to some point in the set $S$, what is the lower bound for $|S|$?
3
Godsil & Royle, Theorem 9.5.1: Extension for digraphs?
3
Determining if a Matrix is Diagonalizable without computing Eigenvalues
3
Determinant of a symmetric matrix of odd order is even
3
How many 2-edge-colourings of $K_n$ are there?
3
example that shows that the edge chromatic number may be larger than the maximal degree
3
Graph regular of degree 0, does Line graph exist?
3
How many ways can one paint the edges of a Petersen graph black or white?
3
Graphs with commuting adjacency matrices
3
Proving that the characteristic polynomial of a bipartite graph has alternating positive and negative coefficients
3
Partition function with restrictions
3
Is the Set of all Graphs Countable?
3
What is the smallest graph that contains all non-isomorphic 4-node and 5-node connected graphs as induced subgraphs?
3
Real-world uses of Algebraic Structures
2
The $k[X]$-module and linear operator correspondence
2
Eigenvalues of a Hermition Matrix do not cross
2
Ambiguity in the definition of graph homomorphism
2
Intersections of complete k-partite graphs
2
Eccentricity of vertices in a regular graph
2
Are there rules in the useage of prepositions in Math?
1 2 3