Matrix limit theorems of Kato type related to positive linear maps and operator means
Abstract
We obtain limit theorems for $\Phi(A^p)^{1/p}$ and $(A^p\sigma B)^{1/p}$ as $p\to\infty$ for positive matrices $A,B$, where $\Phi$ is a positive linear map between matrix algebras (in particular, $\Phi(A)=KAK^*$) and $\sigma$ is an operator mean (in particular, the weighted geometric mean), which are considered as certain reciprocal Lie-Trotter formulas and also a generalization of Kato's limit to the supremum $A\vee B$ with respect to the spectral order.
- Publication:
-
arXiv e-prints
- Pub Date:
- October 2018
- DOI:
- 10.48550/arXiv.1810.05476
- arXiv:
- arXiv:1810.05476
- Bibcode:
- 2018arXiv181005476H
- Keywords:
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- Mathematics - Functional Analysis;
- 15A45;
- 15A42;
- 47A64
- E-Print:
- 23 pages