目的研究一类二次微分系统的极限环存在性及唯一性。
Aim To discusses the existence and uniqueness of limit cycles for a class of quadratic system.
本文给出在中国分类之下二次微分系统有中心时两种情况的通积分。
We give general integral of quadratic differential system with center in two cases under the Chinese classification.
本文给出在中国分类之下二次微分系统有中心时两种情况的通积分。
We give general integral of quadratic differential system with center in two cases under the Chinese classification.
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