讲座人简介：

王志强，美国犹他州立大学终身教授，美国数学会会士，国际著名的非线性分析和偏微分方程专家。研究领域：非线性泛函分析和非线性微分方程。在椭圆问题单峰解、多峰解、奇异变分问题、非线性Schrodinger方程和Schrodinger方程组等问题的研究中取得系列具有国际影响力的研究成果，在Comm. Pure Appl. Math., Adv. Math., Arch. Ration. Mech. Anal., J. Eur. Math. Soc. (JEMS), J. Math. Pures Appl., Trans. Amer. Math. Soc.等国际著名期刊发表学术论文200余篇。

讲座简介：

We report results on existence of sign-changing solutions for coupled nonlinear Schrodinger equations. Various techniques will be discussed for constructing sign-changing solutions for this class of systems for which it is important to distinguish solutions due to the existence of a large number of different type of solutions.