Authors: Bronstein I., Kopanskij A.
Abstract
Conditions sufficient for smooth linearization of a system of differential equations near a hyperbolic singular point are considered. It is shown that the condition $T(k)$ introduced by A.D.Bruno is more restrictive than $\frak (k)$.
Institutul de Matematică Academia de Ştiinţe a Moldovei
str. Academiei 5, Chişinău MD-2028, Moldova