%0 Journal Article
%T AN n-DISTRICT MIGRATING POPULATION DEVELOPING SYSTEM<br>多地区多向流动的人口发展系统
%A TANG PENG-ZHI
%A <br>汤鹏志
%J 系统科学与数学
%D 1990
%I 
%X Since Song Jian et al.gave the n-district population developing equations in 1],many re-sults have been obtained for n=1,but only few papers discussed the case n>1.In this paper atheorem on uniquencess and the existence of n-district population equations is proved and thespectral properties of the n-district population operator A+B are discussed,and a necessary andsufficient condition of the stability is given.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=37F46C35E03B4B86&jid=0CD45CC5E994895A7F41A783D4235EC2&aid=07A1748B2E0E5842DC27D692622AECDF&yid=8D39DA2CB9F38FD0&vid=F3090AE9B60B7ED1&iid=0B39A22176CE99FB&sid=E22B6B8FE86DD8F9&eid=856C2E13D1000DB7&journal_id=1000-0577&journal_name=系统科学与数学&referenced_num=0&reference_num=0