On a trace inequality
โ Scribed by Derming Wang
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 269 KB
- Volume
- 273
- Category
- Article
- ISSN
- 0024-3795
No coin nor oath required. For personal study only.
โฆ Synopsis
Let A andB be positive operators and p, ct, s >/0. Assume either (1) A /> B and fl >~ max{-ยฝ(p + 2a), -ยฝ(i + 2a)}, or (2) A and B are invertible with log A ~> log B and /3 >/ -a. Then, for any continuous increasing function f on โข+ with f(0) = 0, the trace inequality Trf(A~(A'~BPA~)SA ~) <~ Trf(A (p+2~s+2~) holds. This generalizes both a trace inequality due to Kosaki and one due to Furuta.
๐ SIMILAR VOLUMES
In this note, the matrix trace inequality for positive semidefinite matrices A and B, tr AB m โค tr A 2m tr B 2m 1/2 is established, where m is an integer. The above inequality improves the result given by Yang (