Посилання:Feedback Equivalence of 1-dimensional Control Systems of the 1-st Order / V.V. Lychagin // Збірник праць Інституту математики НАН України. — 2009. — Т. 6, № 2. — С. 288-302. — Бібліогр.: 9 назв. — англ.
The problem of local feedback equivalence for 1-dimensional control systems of the 1-st order is considered. The algebra of differential invariants and criteria for the feedback equivalence for regular control systems are found.