摘要
根据拓扑学中网的数学定义,证明了收敛于xi∈AX的网xiα和收敛于xi的地图符号qgf(xi)的网qgf(xi)α的存在,推导了可表达坐标网、水网、道路网等多种地图网络的数学定义。
According to the mathematical definition of net in topology , the existence that net {x} of converge to xi∈ Abelong toX and net{qgf （xi）a} of converge to map symbol qgf（xi） was proved by the author.Mathematical definition of multi map nets that may express grid, water net and road net etc is given.
出处
《海洋测绘》
2009年第3期19-20,共2页
Hydrographic Surveying and Charting
关键词
网
邻域
收敛
拓扑映射
地图网络
数学定义
net
neighborhood
convergence
topological mapping
map nets
mathematical definition
