Geodesic
Symmetries and Variation of Spectra
Canadian journal of mathematics, Tome 44 (1992) no. 6, pp. 1155-1166

Voir la notice de l'article provenant de la source Cambridge University Press

An interesting class of matrices is shown to have the property that the spectrum of each of its elements is invariant under multiplication by p-th. roots of unity. For this class and for a class of Hamiltonian matrices improved spectral variation bounds are obtained.
DOI : 10.4153/CJM-1992-069-3
Mots-clés : 15 A 42, 15 A 57, 65 F 15, eigenvalues, spectral variation, Carrollian spectra, Hamiltonian matrices 
Bhatia, R.; Elsner, L. Symmetries and Variation of Spectra. Canadian journal of mathematics, Tome 44 (1992) no. 6, pp. 1155-1166. doi: 10.4153/CJM-1992-069-3
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