Nonsingularity of the Combinations of Two Orthogonal Projectors  

作　　者：ZUO Kezheng XIE Tao 

机构地区：[1]School of Mathematics and Statistics,Hubei Normal University,Huangshi 435002,Hubei,China

出　　处：《Wuhan University Journal of Natural Sciences》2012年第1期7-11,共5页武汉大学学报（自然科学英文版）

基　　金：Supported by the Hubei Normal University Research Grant (2008D54)

摘　　要：The invertibility of combinations of two orthogonal projectors aP ＋ bQ - cPQ - dQP is researched by using the CSdecomposition of matrices and properties of orthogonal projectors. The Moore-enrose inverse of the combinations is presented under some special conditions.The invertibility of combinations of two orthogonal projectors aP ＋ bQ - cPQ - dQP is researched by using the CSdecomposition of matrices and properties of orthogonal projectors. The Moore-enrose inverse of the combinations is presented under some special conditions.

关 键 词：combinations of two orthogonal projectors CS- decomposition principal angles 

分 类 号：O151.2[理学—数学]