| Conţinutul numărului revistei |
| Articolul precedent |
| Articolul urmator |
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 1059 9 |
| Ultima descărcare din IBN: 2023-08-13 17:26 |
| Căutarea după subiecte similare conform CZU |
| 517.925 (42) |
| Differential equations. Integral equations. Other functional equations. Finite differences. Calculus of variations. Functional analysis (242) |
 SM ISO690:2012COZMA, Dumitru, DASCALESCU, Anatolii. Integrability conditions for a class of cubic differential systems with a bundle of two invariant straight lines and one invariant cubic. In: Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, 2018, vol. 86, nr. 1(86), pp. 120-138. ISSN 1024-7696. |
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 Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica |
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| Volumul 86, Numărul 1(86) / 2018 / ISSN 1024-7696 /ISSNe 2587-4322 | |||||||
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| CZU: 517.925 | |||||||
| MSC 2010: 34C05. | |||||||
| Pag. 120-138 | |||||||
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We determine conditions for the origin to be a center for a class of cubic differential systems having a bundle of two invariant straight lines and one invariant cubic. We prove that a fine focus O(0, 0) is a center if and only if the first three Lyapunov quantities vanish. |
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| Cuvinte-cheie Cubic differential system, Center-focus problem, invariant algebraic curve, integrability. |
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