66 citations · 272 across the 40 of their papers we have counts for
41 papers
A physics-driven study of dominance space in soccer
Costas J. Efthimiou, Gregory DeCamillis, Indranil Ghosh
In arXiv:2107.05714 the concept of the Voronoi diagram was investigated closely from a theoretical point of view. Then, a physics-driven kinematical method was introduced to produc…
The Voronoi Diagram in Soccer: a theoretical study to measure dominance space
Costas J. Efthimiou
In this article, I argue that the concept of the standard Voronoi diagram is incorrect for the calculation of dominance area in soccer. The correct region that should replace the p…
Electrostatics and Riemann Surfaces
Spencer Tamagni, Costas Efthimiou
Using techniques from geometry and complex analysis in their simplest form, we present a derivation of electric fields on surfaces with non-trivial topology. A byproduct of this an…
Investigation of Skyscraper's Feat (original version with an addendum)
Costas Efthimiou
Skyscraper is a Hollywood action film directed and written by Rawson M. Thurber scheduled to be released on July 13, 2018. We present an exhaustive analysis of the feat shown in th…
Household Income Distribution in the USA
Costas Efthimiou, Adam Wearne
In this article we present an alternative model for the distribution of household incomes in the United States. We provide arguments from two differing perspectives which both yiel…
String Theory has no Isotropic Solution for the Modified Einstein's Equations without the Dilaton
Christopher Frye, Costas Efthimiou
We investigate the modification to Einstein's vacuum field equations which is imposed by string theory when the dilaton field is ignored. Including the cosmological constant in all…