Abstract: Partition functions and graph polynomials have found many applications in combinatorics, physics, biology and even the mathematics of finance. Studying their complexity poses some problems.

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.

Abstract: A scattering center model is proposed for providing a very efficient sparse expansion for radar scattering data based on physical and polynomial functions to represent the frequency ...