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New Inequalities of the Kantorovich Type With Two Negative Parameters

Functional Analysis 2020-05-07 v5

Abstract

We show the following result: Let A,BB(H)A,B\in \mathbb{B}\left( \mathcal{H} \right) be two strictly positive operators such that ABA\le B and m1HBM1Hm{{\mathbf{1}}_{\mathcal{H}}}\le B\le M{{\mathbf{1}}_{\mathcal{H}}} for some scalars 0<m<M0<m<M. Then Bpexp(M1HBMmlnmp+Bm1HMmlnMp)K(m,M,p,q)Aq for p0,1q0{{B}^{p}}\le \exp \left( \frac{M{{\mathbf{1}}_{\mathcal{H}}}-B}{M-m}\ln {{m}^{p}}+\frac{B-m{{\mathbf{1}}_{\mathcal{H}}}}{M-m}\ln {{M}^{p}} \right)\le K\left( m,M,p,q \right){{A}^{q}}\quad\text{ for }p\le 0,-1\le q\le 0 where K(m,M,p,q)K\left( m,M,p,q \right) is the generalized Kantorovich constant with two parameters. In addition, we obtain Kantorovich type inequalities for the chaotic order.

Keywords

Cite

@article{arxiv.1710.02937,
  title  = {New Inequalities of the Kantorovich Type With Two Negative Parameters},
  author = {S. Furuichi and H. R. Moradi},
  journal= {arXiv preprint arXiv:1710.02937},
  year   = {2020}
}

Comments

to appear in Analysis Mathematica