Geodesic
Certain properties of the roots of a self-adjoint quadratic pencil
Funkcionalʹnyj analiz i ego priloženiâ, Tome 9 (1975) no. 4, pp. 28-40 Cet article a éte moissonné depuis la source Math-Net.Ru

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A. G. Kostyuchenko; M. B. Orazov. Certain properties of the roots of a self-adjoint quadratic pencil. Funkcionalʹnyj analiz i ego priloženiâ, Tome 9 (1975) no. 4, pp. 28-40. http://geodesic.mathdoc.fr/item/FAA_1975_9_4_a3/

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