学术空间

数学与统计及交叉学科前沿论坛------高端学术讲座第87场

讲座题目:On uniqueness of multi-bubble blow-up solutions and multi-solitons to L^2-critical NLS

主讲人:苏一鸣 副教授  浙江工业大学

讲座时间:2023915周五)11:00-12:00

讲座地点:教三楼西312


主讲人简介:

  苏一鸣,浙江工业大学,副教授,2014年博士毕业于中国科学院数学与系统科学研究院,研究方向为偏微分方程。目前在非线性薛定谔方程解的长时间行为上取得了若干研究成果,相关工作发表在《Arch. Ration. Mech. Anal.》,《Probab. Theory Relat. Fields》,《Trans. Amer. Math. Soc.》,《J. Funct. Anal.》等数学领域的权威期刊上。


主讲内容:

  We are concerned with the focusing L^2-critical nonlinear Schrodinger equations. The uniqueness is proved for a large energy class of multi-bubble blow-up solutions, which converge to a sum of K pseudo-conformal blow-up solutions particularly with the low rate (T-t)^{0+}. Moreover, we also prove the uniqueness in the energy class of multi-solitons which converge to a sum of K solitary waves with convergence rate (1/t)^{2+}. The uniqueness class is further enlarged to contain the multi-solitons with even lower convergence rate (1/t)^{1/2+} in the pseudo-conformal space. This talk is based on a joint work with Prof. Cao Daomin and Prof. Zhang Deng.