Browsing CAIM - 2018 by Author "ORLOV, Victor"

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Invariant conditions of stability of unperturbed motion described by cubic differential system with quadratic part of Darboux type

NEAGU, Natalia; ORLOV, Victor; POPA, Mihail (Bons Offices, 2018)

In the center-affine invariant conditions of stability of unperturbed motion, described by critical two-dimensional differential systems with quadratic nonlinearities s(1, 2), cubic nonlinearities s(1, 3) and fourth-order ...
A rational basis of GL (2, R )-comitants for the bidimensional polynomial system of differential equations of the fifth degree

CALIN, Iurie; ORLOV, Victor (Bons Offices, 2018)

Definition 1. The set S of the comitants is called a rational basis on M ⊆ A of the comitants for the system with respect to the group GL(2, R) if any comitant of the system (1) with respect to the group GL(2, R) can be ...

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