学术报告:2019年6月17日10:00-11:00,常向科,中国科学院数学与系统科学研究院
发布者:吕小俊发布时间:2019-06-16浏览次数:1019
太阳成集团tyc234cc官网邀请专家申请表
报告人 | 常向科 | 单位 | 中国科学院数学与系统科学研究院 |
报告题目 | Lax integrability and the peakon problem for the modified Camass-Holm equation |
报告时间 | 2019年6月17日上午10-11点 | 地点 | 太阳成集团tyc234cc官网第一报告厅 |
邀请人 | 陈金兵 |
报告摘要 | Peakons are special weak solutions of a class of nonlinear partial differential equations modelling non-linear phenomena such as the breakdown of regularity and the onset of shocks. In this talk, we give a complete construction of peakon solutions satisfying the modified Camassa-Holm (or called FORQ)equation in the sense of distributions; our approach is based on solving certain inverse boundary value problem the solution of which hinges on a combination of classical techniques of analysis involving Stieltjes' continued fractions and multi-point Pad\'{e} approximations. We propose sufficient conditions needed to ensure the global existence of peakon solutions and analyze the large time asymptotic behaviour whose special features include a formation of pairs of peakons which share asymptotic speeds, as well as Toda-like sorting property. |
报告人简介 | 常向科,现任中科院数学与系统科学研究院副研究员。于2014年博士毕业于中国科学院数学与系统科学研究院,曾在加拿大萨斯喀彻温大学进行博士后研究以及学术访问。主要从事可积系统及相关领域的交叉研究,部分工作发表于《Adv. Math.》、《Comm. Math. Phys.》、《Nonlinearity》、《Numer. Math.》、《SIAM J. Discrete Math.》、《Stud. Appl. Math.》等期刊。 |