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 …
math.GM2023
Eigenvalues of Real Matrices with Prescribed Principal Minors Sign and Descartes Law of Signs
Laureano González-Vega, J. Rafael Sendra, Juana Sendra
In this paper, using Descartes law of sign, we provide elementary proof of results on the number of real eigenvalues of real matrices of which certain properties on the signs of th…
math.AG2010
Parametrization of -rational curves: error analysis
Sonia L. Rueda, Juana Sendra
In [Computer Aided Geometric Design 27 (2010), 212-231] the authors present an algorithm to parametrize approximately -rational curves, and they show in 2 examples that the Haus…