Left eigenvalues of 2× 2 symplectic matrices
Macías-Virgós, E. · Pereira-Sáez, M. J.
Original · EN
We obtain a complete characterization of the 2× 2 symplectic matrices having an infinite number of left eigenvalues. Previously, we give a new proof of a result from Huang and So about the number of eigenvalues of a quaternionic matrix. This is achieved by applying an algorithm for the resolution of equations due to De Leo et al.
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