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主讲人:陈兴武
主办单位:数学与大数据学院
讲座时间:2023年11月7日 10:30-11:30
讲座地点:知津楼C303
内容简介:
We talk about the linearization and perturbations of planar switching systems separated by x-axis and sharing the origin as a non-degenerate equilibrium. In the sense of Sigma-equivalence, we provide a sufficient condition for piecewise linearization near the origin, generalizing the classical linearization theorem to switching systems. This condition is hard to be weakened because there exist systems that are not linearizable when this condition is not satisfied. On the other hand, perturbations are considered for such systems to birth any finitely or infinitely many crossing limit cycles.
主讲人简介:
陈兴武,男,2007年获四川大学理学博士学位,现任四川大学数学学院教授、博导,巴渝学者讲座教授,美国《数学评论》、欧洲《数学文摘》评论员。主要从事微分系统定性和分岔的理论及应用研究,在该研究方向的主流国际学术期刊Nonlinearity, JDE, SIMA, DCDS等发表一系列学术论文,部分成果获教育部自然科学一等奖;主持国家自然科学基金青年项目和多项面上项目及科技部政府间合作交流项目,并参与国家重点研发项目;曾应邀赴美国明尼苏达大学、西班牙巴塞罗那自治大学等学术机构交流访问。