relation: http://acta.bibl.u-szeged.hu/75837/ title: Weak center for a class of Λ–Ω differential systems creator: Zhou Zhengxin subject: 01. Természettudományok subject: 01.01. Matematika description: In this paper, we give the necessary and sufficient conditions for a class of higher degree polynomial systems to have a weak center. As corollaries, we prove the correctness of the two conjectures about the weak center problem for the Λ–Ω differential systems. date: 2022 type: Folyóirat type: NonPeerReviewed format: full language: hu identifier: http://acta.bibl.u-szeged.hu/75837/1/ejqtde_2022_022.pdf identifier: Zhou Zhengxin: Weak center for a class of Λ–Ω differential systems. (2022) language: eng