%0 Journal Article
%T CONTROLLABILITY AND OBSERVABILITY OF ABSTRACT BOUNDARY VALUE SYSTEMS<br>边值系统的能控性与能观测性问题
%A Gen Qi XU
%A De Xing FENG
%A <br>许跟起
%A 冯德兴
%J 系统科学与数学
%D 2000
%I 
%X The controllability and observability of initial value systems are extended to abstract boundary value systems in this paper. Some sufficient and necessary conditions about controllability of the boundary value systems and the dual relations between controllability and observability are obtained. As applications, the controllability of hypoelliptic equation and transport equation is studied.
%K Boundary value system
%K controllability
%K observability<br>边值系统
%K 能控性
%K 能观测性.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=37F46C35E03B4B86&jid=0CD45CC5E994895A7F41A783D4235EC2&aid=E7554F28D6ECDCAB&yid=9806D0D4EAA9BED3&vid=A04140E723CB732E&iid=0B39A22176CE99FB&sid=43608FD2E15CD61B&eid=0584DB487B4581F4&journal_id=1000-0577&journal_name=系统科学与数学&referenced_num=0&reference_num=20