6,920 reputation
11338
bio website quoll.uwaterloo.ca
location waterloo
age 65
visits member for 4 years, 5 months
seen 6 mins ago
Professor at University of Waterloo in C&O

7h
reviewed Leave Open Generating function which has no singularity
7h
reviewed Close Eigenvalue of (0-1) matrix
1d
reviewed Close Variety of commutative semi group
1d
reviewed Close Inn characteristic in Aut
1d
comment Where to include contact details in math paper?
Why not look at some published papers in the journal and do what they do?
1d
reviewed No Action Needed Normal coordinates near the boundary
1d
reviewed Close Travelling Salesman Problem
1d
reviewed Close Dead Flies Problem
2d
reviewed Close vector-matrix notation and expectation of matrix and Hermitian product
2d
reviewed Close Find two triangles of longest side length 25?
2d
comment Spectral Graph Theory
None is known in general.
2d
reviewed No Action Needed Complexity of a function
2d
reviewed No Action Needed In H_2 of Sp(2g,Z), why does Meyer's signature cocycle give 4 times a generator?
Apr
13
reviewed Close Rising Sun Inequality (Dunford-Schwartz maximal inequality)
Apr
12
comment Spectral Graph Theory
I offered only the "the short answer". For example, if the graph has one vertex of degree $k$ and the rest have degree $\ell$, you can derive an interlacing result. But I have never seen anyone find a useful connection between the two spectra.
Apr
12
comment Spectral Graph Theory
Your comment is correct for the matrices, but you asked about the spectrum.
Apr
12
answered Spectral Graph Theory
Apr
12
reviewed Leave Open How can I solve a cubic equation in a finite field with characteristic 2?
Apr
11
reviewed Close Variance of the estimator of a geometric distribution
Apr
11
reviewed Close Is the autocorrelation of one function the same if one term is flipped on the y axis?