勷勤数学•专家报告
题 目:On Cecil-Ryan’s problems about real hypersurfaces in the nonflat complex planes
报 告 人:胡泽军 教授 (邀请人:魏国新)
郑州大学
时 间:8月31日 16:00-17:00
地 点:数科院西楼二楼报告厅
报告人简介:
胡泽军,郑州大学数学与统计学院博士生导师、二级教授、国际数学期刊《Journal of Geometry》和《JP Journal of Geometry and Topology》编委。曾主持河南省杰出青年科学基金和国家自然科学基金面上项目5项。研究方向为微分几何,研究领域涉及子流形的几何与拓扑、共形微分几何、仿射微分几何,特别在等仿射超曲面和中心仿射超曲面研究中做出了一系列重要的工作。
摘 要:
In Cecil and Ryan’s book “Geometry of Hypersurfaces, Springer Monographs in Mathematics, 2015”, the following four open problems were raised in p.531:
1.Do there exist non-Hopf Ricci-semisymmetric hypersurfaces in CP^2 and CH^2?
2.Do there exist non-Hopf pseudo-symmetric hypersurfaces (or even Ricci- pseudosymmetric hypersurfaces) in CP^2 and CH^2?
3.Do there exist hypersurfaces in CP^2 or CH^2 with harmonic curvature, i.e., whose Ricci tensor is a Codazzi tensor?
4.Classify η-parallel hypersurfaces in CP^2 and CH^2?
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