报告题目：Invasion of Alien Planet

报告摘要：We show strong evidences that an alien planet once invaded our solar system. There is a long unsolved mystery concerning a group of asteroids called Jupiter Trojans. Mathematically, there are two symmetric relative equilibrium points for the Sun-Jupiter system, L4 and L5. However, there is a large difference in numbers of observed asteroids: L4 has 60% more than L5. We theorized that this asymmetry is caused by an invasion of alien planet, we computed the necessary parameters for the invading alien planet to cause such an asymmetry. It is quite amazing and surprising to us that these exact parameters perfectly solved another mystery in solar system. The Hildas are a group of a few thousands of asteroids locked in a 3-2 resonance with Jupiter. The very strange thing is that none of the Hildas has small eccentricity. The invading alien planet explains this and perfectly matches with the observations.

This is a joint work with Jian Li, Nanjing University.

报告人简介：

夏志宏，数学家、天文学家，美国西北大学潘克讲座教授，大湾区大学讲座教授。1982年毕业于南京大学天文系，1988年获得美国西北大学数学博士学位。

主要研究领域为动力系统、太阳系动力学，人工智能算法。主要成就包括解决百年悬而未决的庞勒维猜想。曾获多项国际重大学术奖励，包括美国总统青年研究奖、Sloan Research Fellowship、首届布拉门塞尔纯数学进步奖、Monroe Martin应用数学奖。2015年创建南方科技大学数学系并任系主任。2015年参与建立未来科学大奖，是大奖科学委员会创始成员；2022年起担任《知识分子》杂志总编辑之一。

报告时间：2024年4月23日（星期二）9:30 开始

报告地点：数学科学学院56号楼208会议室

主办单位：数学科学学院

联系人：凌智

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