Ordinary Differential Equations

Concomitants of a system with quadratic nonlinearities

Bularas Driss^a, M. N. Popa<sup>b

a</sup> V. I. Lenin Kishinev State University
^b Mathematics Institute, Computer Center, Academy of Sciences of the Moldavian SSR

UDC: 517.925.1

Received: 28.06.1977

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