Acta mathematica scientia, Series B >
A NEW CHARACTERIZATION OF THE CLOSEDNESS OF THE SUM OF TWO SUBSPACES
Received date: 2005-08-26
Revised date: 2006-07-10
Online published: 2008-01-20
In this article, a new characterization of the closedness of the sum of two closed subspaces of a Hilbert space is established.
Key words： Subspace; projection; sum of two closed subspaces
Deng Chunyuan , Du Hongke . A NEW CHARACTERIZATION OF THE CLOSEDNESS OF THE SUM OF TWO SUBSPACES[J]. Acta mathematica scientia, Series B, 2008 , 28(1) : 17 -23 . DOI: 10.1016/S0252-9602(08)60003-X
/
| 〈 |
|
〉 |