Geodesic
Coincidence of complete and vector frequencies of solutions of a linear autonomous system
Trudy Seminara im. I.G. Petrovskogo, Trudy Seminara imeni I. G. Petrovskogo, Tome 30 (2014) no. 30, pp. 75-93 
D. S. Burlakov; S. V. Tsoii. Coincidence of complete and vector frequencies of solutions of a linear autonomous system. Trudy Seminara im. I.G. Petrovskogo, Trudy Seminara imeni I. G. Petrovskogo, Tome 30 (2014) no. 30, pp. 75-93. http://geodesic.mathdoc.fr/item/TSP_2014_30_30_a3/
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

It is shown that for each solution of any linear autonomous system, the complete frequency and the vector frequency coincide. This implies that their spectra coincide with the set of absolute values of the imaginary parts of the eigenvalues of the coefficient matrix of the system.

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