IMI/Publicaţii/BASM/Ediţii/BASM n.1 (26), 1998/

Hilbert's series for comitants graded algebras of differential equations. (English)

Authors: Braicov A. V., Macari P. M., Popa Mihail, Port S. A.


It is shown that the linear space of center-affine comitants of a given type is isomorphic to the linear space of unimodular comitants of the same type of a differential system of equations. Generalized and common Hilbert's series for graded algebras of differential system comitants are established.

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