报告题目: Pointwise convergence problem of KP equation with rough data and random data
报告人:闫威 特聘教授
报告时间:2020年10月24日(周六)上午9:00-10:00
报告地点:腾讯会议218 426 876 会议密码:123456
主持人:吕广迎 副教授
摘要:In this paper, we consider the pointwise convergence problem of free KP equation with rough data. Firstly, we show the almost everywhere pointwise convergence of free KP equation for data in $H^{s}(\R^{2})$ with $s\geq \frac{1}{2}$. Then, we show that the maximal function estimate can fail if $s< \frac{3}{8}.$ finally, we established probabilistic pointwise convergence of kp with random data in $l^{2}(\r^{2}).$ the main difficulty is that $\xi_{1}="0$" is the singular point of the phase function $\xi_{1}^{3}\pm \frac{\xi_{2}^{2}}{\xi_{1}}$ of free kp equation。
报告人简介:闫威,河南师范大学教授,博士生导师,2011年博士毕业于华南理工大学,先后主持三项国家自然科学基金, 已在国内外重要期刊Ann. Inst. H. Poincaré Anal. Non Linéaire, Advances in Differential Equations, Differential and integral Equations, Journal of Differential Equations,Science China Mathematics等发表多篇文章。研究方向是偏微分方程 ,调和分析,随机偏微分方程与初值随机化等。
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数学与统计学院
2020年10月23日