Geodesic
Solvability of matrix equations in rings of quasi-diagonal matrices and similarity of matrix polynomials
Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 46 (2006) no. 8, pp. 1353-1362 
B. Z. Shavarovskii. Solvability of matrix equations in rings of quasi-diagonal matrices and similarity of matrix polynomials. Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 46 (2006) no. 8, pp. 1353-1362. http://geodesic.mathdoc.fr/item/ZVMMF_2006_46_8_a1/
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Voir la notice de l'article provenant de la source Math-Net.Ru

A certain standard form is found for a complex matrix with respect to equivalent transformations by quasi-diagonal matrices. The solvability of certain matrix equations in the rings of quasi-diagonal matrices is examined using this standard form.

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