Geodesic
About characteristic equation for two-parameter matrix equation
Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 3 (2006), pp. 21-24 
G. H. Sahakyan. About characteristic equation for two-parameter matrix equation. Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 3 (2006), pp. 21-24. http://geodesic.mathdoc.fr/item/UZERU_2006_3_a1/
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Voir la notice de l'article provenant de la source Math-Net.Ru

In the work one characteristic function is defined for matrix, which allows to get comfortable form to study the characteristic equation for two-parameter matrix equation.

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[2] Browne P.J., Ordinary and Partial Differential Equations, 2 (1989), 52–60

[3] Saakyan G.G., Obrazovanie i Nauka v Artsakhe, 2005, no. 1—2, 152–155

[4] Gelfand I.M., Lektsii po lineinoi algebre, Nauka, M., 1971 | MR

[5] Edwards S.N., David E.R., Elementary Linear Algebra, New Jersey, 1988