*主持人：傅显隆 教授

*讲座内容简介：
In this talk we introduce some results on the global and local integrability of systems of ordinary differential equations, and the methods used in the study of these problems. The main results are on Darboux and Liouville integrability of polynomial differential systems，and the existence and regularity of local first integrals near singularity.

*主讲人简介：
张祥教授，上海交通大学特聘教授（二级教授、享受国务院特殊津贴专家）。2018年入选欧洲科学与艺术院院士。入选教育部新世纪优秀人才，上海市曙光计划和上海市浦江计划。从事动力系统的定性、分支和可积理论的研究。主要结果发表在American J. Math., Comm. Math. Phys., J. Differential Equations, J. Functional Analysis, Physica D, Trans. Amer. Math. Soc. 等国际学术期刊上。目前担任中国数学会奇异摄动专业委员会主任、中国数学会理事, 以及两个SCI杂志QTDS和IJBC的编委等。