The problem of the center for cubic differential systems with two affine non-parallel invariant straight lines of total multiplicity three

In this paper, we show that a center-focus critical point of cubic differential systems with two affine non-parallel invariant straight lines of total multiplicity three is a center type if and only if the first five Lyapunov quantities vanish.  

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Bibliographic Details
Main Author: Alexandru Șubă
Format: Article
Language:English
Published: "Ion Creanga" State Pedagogical University 2025-01-01
Series:Acta et Commentationes: Ştiinţe Exacte şi ale Naturii
Subjects:
Online Access:https://revistaust.upsc.md/index.php/acta_exacte/article/view/1084
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