Geodesic
Quartic differential systems with an invariant straight line of maximal multiplicity
Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, no. 1 (2018), pp. 76-91.

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In this work we show that in the class of quartic differential systems the maximal algebraic multiplicity Ma of an invariant straight line is equal to 10. 
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Alexandru Şubă; Olga Vacaraş. Quartic differential systems with an invariant straight line of maximal multiplicity. Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, no. 1 (2018), pp. 76-91. https://geodesic-test.mathdoc.fr/item/BASM_2018_1_a6/

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