期刊文献+
共找到6篇文章
< 1 >
每页显示 20 50 100
基于圆增长特征的点状要素群选取算法 被引量:3
1
作者 高三营 闫浩文 +2 位作者 陈静静 曹宝军 傅金镒 《测绘工程》 CSCD 2008年第6期20-23,28,共5页
控制点、独立地物等在地图上呈点群状表达,如何高效、合理地实现此类要素的自动综合是地图多尺度表达的重要问题。文中在前人研究的基础上,提出一种基于圆增长特征的点状要素群结构化选取算法,实现点状要素群的自动选取。其基本原理是:... 控制点、独立地物等在地图上呈点群状表达,如何高效、合理地实现此类要素的自动综合是地图多尺度表达的重要问题。文中在前人研究的基础上,提出一种基于圆增长特征的点状要素群结构化选取算法,实现点状要素群的自动选取。其基本原理是:根据一个点与其周围点重要性程度的比较来确定该点删除与否,从而确保其拓扑关系和几何信息的正确性。实验证明:该算法实用、有效。 展开更多
关键词 地图自动综合 点状要素 圆增长 结构化
下载PDF
基于动态圆增长模型的底质点分区选取方法
2
作者 孙亦成 李树军 张进 《地理空间信息》 2019年第10期82-85,I0007,共5页
多源底质点数据存在分布密度差异大、数据冗余度大等局限,现有的点状要素选取方法无法满足应用需求。在顾及点数据底质类型,确定底质分布域完成底质点分区,获得点群数据后,提出了基于动态圆增长模型进行底质点的选取方法。
关键词 多源底质点数据 选取分区 点群 动态圆增长
下载PDF
FINITE RANGE SET WITH TRUNCATED MULTIPLICITY FOR MEROMORPHIC FUNCTIONS ON SOME COMPLEX DISC
3
作者 WANG Yu-ting CAO Hong-zhe 《数学杂志》 2024年第5期383-396,共14页
In this paper,we consider the truncated multiplicity finite range set problem of meromorphic functions on some complex disc.By using the value distribution theory of meromorphic functions,we establish a second main th... In this paper,we consider the truncated multiplicity finite range set problem of meromorphic functions on some complex disc.By using the value distribution theory of meromorphic functions,we establish a second main theorem for meromorphic functions with finite growth index which share meromorphic functions(may not be small functions).As its application,we also extend the result of a finite range set with truncated multiplicity. 展开更多
关键词 meromorphic functions finite growth index complex disc finite range set trun-cated multiplicity
下载PDF
The Growth Theorem for Almost Starlike Mappings of Order α on Bounded Starlike Circular Domains 被引量:3
4
作者 冯淑霞 卢克平 《Chinese Quarterly Journal of Mathematics》 CSCD 2000年第2期50-56,共7页
In this paper,we extend the definition of almost starlike mappings of order 1/2 on B n to the almost starlike mappings of order α on the bounded starlike circular domains in C n,and give the growth theorem of it.... In this paper,we extend the definition of almost starlike mappings of order 1/2 on B n to the almost starlike mappings of order α on the bounded starlike circular domains in C n,and give the growth theorem of it. This type of domain on which we discuss is rather general,in the sense that the domain must be starlike if there exists a normalized biholomorphic starlike mapping on it. 展开更多
关键词 almost starlike mapping of order α growth theorem starlike circular domains
下载PDF
The Growth Theorem for Strongly Starlike Mappings of Order α on Bounded Starlike Circular Domains
5
作者 刘浩 李小申 《Chinese Quarterly Journal of Mathematics》 CSCD 2000年第3期28-33,共6页
The authors obtain the growth and covering theorems for strongly starlike mappings of order α on bounded starlike circular domains.This kind of domain discussed is rather general,since the domain must be starlike if ... The authors obtain the growth and covering theorems for strongly starlike mappings of order α on bounded starlike circular domains.This kind of domain discussed is rather general,since the domain must be starlike if exists a normalized biholomorphic starlike mapping on it. 展开更多
关键词 strongly starlike mappings of order α growth theorem startike circular domains
下载PDF
A Property of Solutions for Elliptic Equation with Nonstandard Growth Conditions in Unbounded Domain
6
作者 邱子华 叶瑞芬 《Chinese Quarterly Journal of Mathematics》 CSCD 1999年第1期26-34, ,共9页
In this paper the author proves that the Phragmen Lindelof principle holds for solutions of elliptic equation (1) with nonstandard growth conditions.
关键词 nonstandard growth conditions anisotropy Sobolev space elliptic equation generalized solution Phragmen Lindelof principle
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部