主题:pseudoharmonic maps from pseudo-hermitian manifolds
时间:2023年8月2日 15:00-16:30
地点:腾讯会议:484-974-128
主持人:种田 副教授
报告人简介:
杨桂林,2013年博士毕业于复旦大学,2013-2018年在华中科技大学工作,2016-2018年在意大利跟cr几何专家sorin dragomir做博士后, 2020年9月起在上海立信会计金融学院工作。已在nagoya math. j., calculus of variation and pde, science china math.等杂志上发表多篇论文。主要研究方向是调和映照、几何分析、cr几何、次黎曼几何等。
讲座简介:
in this talk, we investigate pseudoharmonic maps from the pseudo-hermitian manifolds. we first give the cr bochner type result for pseudoharmonic maps. then some foliated results, pluriharmonicity and siu-sampson type results are established for pseudoharmonic maps. finally, we use the heat flow method to prove the existence of pseudoharmonic maps from closed pseudo-hermitian manifolds. it is a generalization of eells-sampson’s existence theorem. we also get the hartman’s type theorem.