US space programme: Delay not an unmixed curse

The resultant of an unmixed bivariate system

This paper gives an explicit method for computing the resultant of any sparse unmixed bivariate system with given support. We construct square matrices whose determinant is exactly the resultant. The matrices constructed are of hybrid Sylvester and Bézout type. The results extend those in [14] by giving a complete combinatorial description of the matrix. Previous work by D’Andrea [5] gave pure ...

Development in US States, Economic Freedom, and the "Resource Curse"

Resolution of Unmixed Bipartite Graphs

For an unmixed bipartite graph G we consider the lattice of vertex covers LG and compute depth, projective dimension and extremal Bettinumbers of R/I(G) in terms of this lattice.

A not on modular hyperconvex space

Predicting Delay Times for US Domestic Flights

In this project I will only used flights from 20022008, since Pre 9/11 flight delays should not be as relevant to creating a predictive model on modern flight delays. I also only imported the flight records from one datasource in the BTS, since this was the most relevant for tracking flight delays. I began by importing this flight data into a SQLite database, but with over 40 million records, e...