2 citations · 2 across the 3 of their papers we have counts for
3 papers
math.RA2009
Symplectic matrices with predetermined left eigenvalues
E. Macías-Virgós, M. J. Pereira-Sáez
We prove that given four arbitrary quaternion numbers of norm 1 there always exists a symplectic matrix for which those numbers are left eigenvalues. The proof is const…
math.AT2009★ 2 cited
Trace map, Cayley transform and LS category of Lie groups
A. Gómez-Tato, E. Macías-Virgós, M. J. Pereira-Sáez
The aim of this paper is to use the so-called Cayley transform to compute the LS category of Lie groups and homogeneous spaces by giving explicit categorical open coverings. When a…
math.RA2008
Left eigenvalues of symplectic matrices
E. Macías-Virgós, M. J. Pereira-Sáez
We obtain a complete characterization of the symplectic matrices having an infinite number of left eigenvalues. Previously, we give a new proof of a result from Huang a…