Stable motions of high energy particles interacting via a repelling potential

活动时间:2024-09-08 09:20

活动地点:学院2号楼2022报告厅

主讲人:Dmitry Turaev

主讲人中文简介:

Dmitry Turaev教授现任伦敦帝国理工学院数学系教授,长期从事动力系统,分岔理论,混沌动力学问题等相关领域的研究工作,是现代非线性动力学研究的杰出代表之一。他于1991年在下诺夫哥罗德大学获得博士学位,2004-2006年2次获得以色列科学基金,2014-2018获得俄罗斯科学基金,并主持和参与英国皇家学会多项项目。

Dmitry Turaev教授在耗散混沌的量化,Hamiltonian动力学,无限维动力学,动力系统和遍历理论,微分方程动力学等方面取得了很好的研究成果。目前著有专著1部(俄文撰写,先后被翻译为英文,中文),并在Invent. Math.、Phys. Rev. Lett.、Ann. Appl. Probab.、Proc. Natl. Acad. Sci.USA、Math. Ann.、Comm. Math. Phys.、Adv. Math.、Arch. Ration. Mech. Anal.等国际期刊上发表学术论文百余篇。

活动内容摘要:

The motion of N particles interacting by a smooth repelling potential and confined to a compact d-dimensional region is proved to be, under mild conditions, non-ergodic for all sufficiently large energies. Specifically, choreographic solutions, for which all particles follow approximately the same path close to an elliptic periodic orbit of the single-particle system, are proved to be KAM stable in the high energy limit. It is also  proved that the motion of N repelling particles in a rectangular box is non-ergodic at high energies for a generic choice of interacting potential.

主持人:孙春友