English

Matrix limit theorems of Kato type related to positive linear maps and operator means

Functional Analysis 2018-10-15 v1

Abstract

We obtain limit theorems for Φ(Ap)1/p\Phi(A^p)^{1/p} and (ApσB)1/p(A^p\sigma B)^{1/p} as pp\to\infty for positive matrices A,BA,B, where Φ\Phi is a positive linear map between matrix algebras (in particular, Φ(A)=KAK\Phi(A)=KAK^*) and σ\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 ABA\vee B with respect to the spectral order.

Keywords

Cite

@article{arxiv.1810.05476,
  title  = {Matrix limit theorems of Kato type related to positive linear maps and operator means},
  author = {Fumio Hiai},
  journal= {arXiv preprint arXiv:1810.05476},
  year   = {2018}
}

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23 pages