3 papers
math.SP2025
On the maximal spread of symmetric Bohemian matrices
Neil J. Calkin, Robert M. Corless, Laureano Gonzalez-Vega +2
Let A be a square matrix with real entries. The spread of A is defined as the maximum of the distances among the eigenvalues of A. Let denote the set of all …
cs.CG2025
Relative position of a parabola or a hyperbola and an ellipse without computing intersection points
Jorge Caravantes, Gema M. Diaz-Toca, Mario Fioravanti +1
Efficient methods to determine the relative position of two conics are of great interest for applications in robotics, computer animation, CAGD, computational physics, and other ar…
math.AG2025
Tools for analyzing the intersection curve between a torus and a quadric through projection and lifting
Laureano Gonzalez-Vega, Jorge Caravantes, Gema M. Diaz-Toca +1
This article introduces efficient and user-friendly tools for analyzing the intersection curve between a ringed torus and an irreducible quadric surface. Without loose of generalit…