4 citations · 6 across the 3 of their papers we have counts for
3 papers
Resolving sets tolerant to failures in three-dimensional grids
Mercè Mora, María José Souto Salorio, Ana Dorotea Tarrío-Tobar
An ordered set of vertices of a graph is a resolving set for if every vertex is uniquely determined by its vector of distances to the vertices in . The metric dimens…
Rayleigh quotient and left eigenvalues of quaternionic matrices
E. Macías-Virgós, M. J. Pereira-Sáez, Ana D. Tarrío-Tobar
We study the Rayleigh quotient of a Hermitian matrix with quaternionic coefficients and prove its main properties. As an application, we give some relationships between left and ri…
Classification of the relative positions between a hyperboloid and a sphere
M. Brozos-Vázquez, M. J. Pereira-Sáez, M. J. Souto-Salorio +1
We characterize all possible relative positions between a hyperboloid of one sheet and a sphere through the roots of a characteristic polynomial associated to these quadrics. The c…