走向现代数学学术报告 - 刘劲松研究员(No. 929)
报告题目:Localization of the Kobayashi Metrics
报告时间:2026年4月27日 10:00
报告地点:东海岸校区-D实209
报 告 人:刘劲松 研究员(中国科学院数学与系统科学研究院)
邀 请 人:鲍官龙教授、朱剑峰教授
报告摘要: In this talk we introduce the log-type convex domains, which may have non-smooth or infinitely flat boundaries, and prove a localization theorem for the Kobayashi distance near such boundary points. Using this result, we establish a Gehring-Hayman type estimate for Kobayashi geodesics: Euclidean length is bounded by a logarithmic law in log-type convex domains. As applications, we show that isometries between strongly pseudoconvex domains induce smooth conformal boundary maps, giving a new proof of Fefferman’s theorem. Finally, we prove that Teichmüller space \mathcal{T}_{g,n} cannot be biholomorphic to a bounded pseudoconvex domain that is locally log-type convex at any boundary point.
报告人简介:刘劲松,中科院数学与系统科学研究院数学所研究员。刘劲松研究员的主要研究兴趣是泰西米勒空间、圆堆积等,2015年获得ISAAC青年科学家奖,2019年获国家杰出青年科学基金,曾获中科院优秀教师奖、数学与系统科学研究院优秀教师奖等,其研究论文发表在Invent. Math.、Math. Ann.、 Adv, Math.、 Math. Z.、 Trans. Amer. Math. Soc.、 Israel J. Math.、Comment. Math. Helv.、Sci. China Math.等国际著名数学期刊。