YIN Xiao-yan, LIU San-yang, FANG Liang
(Department of Applied Mathematics, Xi′dian University, Xi′an 710071, Shaanxi, China)
Abstract:
The Lwner partial order for compound matrices are considered. Combing generalized Schur complements with compound matrices, the Lwner partial order for compound matices of generalized Schur complements is studied. Some inequalities, such as Ck[(A*BA)/α]≤[Ck(A/α)]*Ck[B(β′)]Ck(A/α) are obtained.Several eigenvalue inequalities of compound matrices are also offered, which generalize some recent results.
KeyWords:
compound matrix; generalized Schur complement; Lwner partial order; Moore-Penrose generalized inverse; eigenvalue