Geodesic
On some spectral characteristics of multiparameter polynomial matrices
Zapiski Nauchnykh Seminarov POMI, Computational methods and algorithms. Part XVII, Tome 309 (2004), pp. 166-173 
V. B. Khazanov. On some spectral characteristics of multiparameter polynomial matrices. Zapiski Nauchnykh Seminarov POMI, Computational methods and algorithms. Part XVII, Tome 309 (2004), pp. 166-173. http://geodesic.mathdoc.fr/item/ZNSL_2004_309_a9/
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     author = {V. B. Khazanov},
     title = {On some spectral characteristics of multiparameter polynomial matrices},
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     year = {2004},
     volume = {309},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2004_309_a9/}
}
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

The definitions of some spectral characteristics of polynomial matrices (such as the analytical (algebraic) and geometric multiplicities of a point of the spectrum, deflating subspaces, matrix solvents, and block eigenvalues and eigenvectors) are extended to the multiparameter case, and their properties are analyzed.

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[2] V. B. Khazanov, “O spektralnykh svoistvakh mnogoparametricheskikh polinomialnykh matrits”, Zap. nauchn. semin. POMI, 229, 1995, 284–321 | MR

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