A Note on the Left Essential Spectra of Operator Matrices
β Scribed by Yuan Li; Xiu Hong Sun; Hong Ke Du
- Publisher
- Institute of Mathematics, Chinese Academy of Sciences and Chinese Mathematical Society
- Year
- 2007
- Tongue
- English
- Weight
- 153 KB
- Volume
- 23
- Category
- Article
- ISSN
- 1439-7617
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
When A β B(H) and B β B(K) are given, we denote by M C the operator matrix acting on the infinite- . In this paper, for given A and B, the sets CβB l (K,H) Ο l (M C ), CβInv(K,H) Ο l (M C ) and CβInv(K,H) Ο l (M C ) are determined, where Ο l (T ), B l (K, H) and Inv(K, H) denote, respectively, the
A ri43xsaty and sufficient chiiriweritation lrrf totally unimodular matrices is given ick is derived from a nixewrq~ condbtion for totdi unimodularity due to Camion. II~ ~~~~~~~~~~~~tj~n is then used in cunnectirsrh with a theorem of Hoffman and Kruskal to provide an elcment~ry prwf of the charactea