摘要
无限无边界的单连通复形有两种基本类型,即双曲型和抛物型,其对应的圆填充分别填满双曲平面和欧式平面。主要讨论无限有边界的单连通复形K的情形,证明了在双曲平面内存在一个关于K的单叶圆填充P,在P中与K的边界顶点对应的圆是极限圆;这个圆填充P在允许其极限圆与单位圆周存在空隙的意义下是完备的;并且P对于单位圆盘D的M bius变换来说是唯一的。
It is known that the hyperbolic and parabolic complex are two fundamental types for infinite and simply connected complexes,whose corresponding circle packings fill the hyperbolic and the Euclidean plane,respectively.Given an infinite simply connected complex K with boundary,it is proved that there exists an univalent circle packing P for K in the hyperbolic plane D whose circles associate with boundary vertices of K are horocycles,which is complete in the sense of permitting the existence of interstices between horocycles and unit circle D.Moreover,the circle packing P is unique up to Mbius transformations of D.
出处
《中山大学学报(自然科学版)》
CAS
CSCD
北大核心
2010年第4期21-25,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学基金资助项目(10771220)
广西自然科学基金资助项目(0991081)
广西教育厅科研资助项目(200707-MS043)
广西民族大学重大科研资助项目(2008ZD009)
广西民族大学研究生教育创新资助项目(jxun-chx0880)
关键词
圆填充
无限复形
基本二分法
circle packing
infinite complex
fundamental dichotomy