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S2上一类HCMU度量的存在性
作者姓名:魏志强  吴英毅  国金宇
作者单位:中国科学院大学数学科学学院, 北京 100049
基金项目:国家自然科学基金(11471308)资助
摘    要:HCMU度量是紧黎曼面上带奇点的extremal度量.研究它的存在性十分重要.通过研究Chen和Wu(Pacific J Math,2009,240(2):267-288)给出的S2上HCMU度量存在的充分必要条件,证明当S2上至少有(N-1)个鞍点时,一定存在non-CSC HCMU度量,其中N是所有锥奇点的个数.

关 键 词:极值度量  紧黎曼面  HCMU度量  锥奇点  
收稿时间:2015-11-07
修稿时间:2016-01-07

Existence of a class HCMU metric on S2
Authors:WEI Zhiqiang  WU Yingyi  GUO Jinyu
Institution:School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Abstract:HCMU metric is an extremal Kähler metric with singularities on a compact Riemann surface. It is important to study the existence of HCMU metrics. Through studying the sufficient and necessary condition of Chen and Wu(Pacific J Math,2009,240(2):267-288) for the existence of HCMU metrics on S2, we show that there must exist a non-CSC HCMU metric on S2 which has N conical singularities and at least (N-1) saddle points.
Keywords:extremal metric                                                                                                                        compact Riemann surface                                                                                                                        HCMU metric                                                                                                                        conical singularity
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