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 SM ISO690:2012SUBA, Alexandru, VACARAŞ, Olga. Quartic differential systems with an affine real invariant straight line of algebraic multiplicity four. In: Conference on Applied and Industrial Mathematics: CAIM 2017, 14-17 septembrie 2017, Iași. Chișinău: Casa Editorial-Poligrafică „Bons Offices”, 2017, Ediţia 25, pp. 24-25. ISBN 978-9975-76-247-2. |
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| Conference on Applied and Industrial Mathematics Ediţia 25, 2017 |
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Conferința "Conference on Applied and Industrial Mathematics" Iași, Romania, 14-17 septembrie 2017 | ||||||
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We consider the di erential system of the fourth degree x_ = P0 + P1(x; y) + P2(x; y) + P3(x; y) + P4(x; y) P(x; y); y_ = Q0 + Q1(x; y) + Q2(x; y) + Q3(x; y) + Q4(x; y) Q(x; y); (1) where Pk and Qk; k = 1; 2; 3; 4 are homogeneous polynomials in x and y of degree k. |
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