Mathematics
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About

I am a professor of Mathematics at Villanova University, specialtizing in Group Theory, Algebraic Combinatorics, Extremal Graph Theory, etc., with additional interests in Physics (Relativity, QM, String Theory, M-Theory, etc.). I am a frequent guest on "Cotolo Chronicles", a live internet and terrestrial radio broadcast that eminates from SRN Media Works, Toronto.

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All Questions Answers
Score Newest
answer
63
Prove if $56x = 65y$ then $x + y$ is divisible by $11$
Nov 18, 2013
question
13
Prove that a game of Tic-Tac-Toe played on the torus can never end in a draw. (Graph theoretic solutions only.)
Nov 22, 2013
answer
8
The gcd of $p+q$ and $p-q$ where $p4 and $q$ are distinct odd primes
Dec 3, 2013
answer
7
Importance of eigenvalues
Sep 15, 2013
answer
7
Is $G$ always a semidirect product of $[G,G]$ and $G/[G,G]$?
Dec 3, 2013
question
5
Prove that the Möbius ladder and the toroidal ladder are non-isomorphic graphs.
Dec 14, 2013
answer
5
Relation Between Girth and Diameter of $G$
Sep 14, 2013
answer
5
Prove that $12 \mid n^2 - 1$ if $\gcd(n,6)=1$
Sep 23, 2013
answer
5
Non-trivial finite/infinite subgroups of infinite groups
Nov 19, 2013
answer
4
How to integrate $e^{\sin x}(x \cos x - \tan x \sec x)$
Dec 4, 2013
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