THE RATIONAL BASES OF GL(2;R)-COMITANTS AND OF INVARIANTS FOR THE BIDIMENSIONAL SYSTEM OF DIFFERENTIAL EQUATIONS WITH NONLINEARITIES OF THE FOURTH DEGREE
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THE RATIONAL BASES OF GL(2;R)-COMITANTS AND OF INVARIANTS FOR THE BIDIMENSIONAL SYSTEM OF DIFFERENTIAL EQUATIONS WITH NONLINEARITIES OF THE FOURTH DEGREE
In this paper minimal rational bases of GL(2;R)-comitants and a rational basis of GL(2;R)-invariants for the bidimensional system of differential equations with nonlinearities of the fourth degree are presented.