English

Symplectic matrices with predetermined left eigenvalues

Rings and Algebras 2009-07-10 v1 Algebraic Topology

Abstract

We prove that given four arbitrary quaternion numbers of norm 1 there always exists a 2×22\times 2 symplectic matrix for which those numbers are left eigenvalues. The proof is constructive. An application to the LS category of Lie groups is given.

Keywords

Cite

@article{arxiv.0907.1529,
  title  = {Symplectic matrices with predetermined left eigenvalues},
  author = {E. Macías-Virgós and M. J. Pereira-Sáez},
  journal= {arXiv preprint arXiv:0907.1529},
  year   = {2009}
}

Comments

7 pages

R2 v1 2026-06-21T13:23:04.320Z