A NEW CHARACTERIZATION OF THE CLOSEDNESS OF THE SUM OF TWO SUBSPACES  

作　　者：邓春源 杜鸿科 

机构地区：[1]School of Mathematics Science,South China Normal University [2]College of Mathematics and Information Science,Shaanxi Normal University

出　　处：《Acta Mathematica Scientia》2008年第1期17-23,共7页数学物理学报（B辑英文版）

摘　　要：In this article, a new characterization of the closedness of the sum of two closed subspaces of a Hilbert space is established.In this article, a new characterization of the closedness of the sum of two closed subspaces of a Hilbert space is established.

关 键 词：SUBSPACE projection sum of two closed subspaces 

分 类 号：O177[理学—数学]