Asymmetric Choi--Davis inequalities

Autor: Kian, Mohsen, Moslehian, M. S., Nakamoto, R.

Let $\Phi$ be a unital positive linear map and let $A$ be a positive invertible operator. We prove that there exist partial isometries $U$ and $V$ such that \[ |\Phi(f(A))\Phi(A)\Phi(g(A))|\leq U^*\Phi(f(A)Ag(A))U \] and \[\left|\Phi\left(f(A)\right)

Externí odkaz: http://arxiv.org/abs/2001.09962

Estimates of operator convex and operator monotone functions on bounded intervals

Autor: Fujii, M., Moslehian, M. S., Najafi, H., Nakamoto, R.

Publikováno v: Hokkaido Math. J. 45 (2016) , 325-336

Recently the behavior of operator monotone functions on unbounded intervals with respect to the relation of strictly positivity has been investigated. In this paper we deeply study such behavior not only for operator monotone functions but also for o

Externí odkaz: http://arxiv.org/abs/1610.04165

Catheter-Related Thrombosis With Extremely High FDG Uptake on 18 F-FDG PET.

Autor: Ishikawa S; From the Department of Diagnostic Radiology, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan., Nakamoto R; Preemptive Medicine and Lifestyle Related Disease Research Center, Kyoto University Hospital, Kyoto, Japan., Yamamoto T; Department of Cardiovascular Medicine, Kyoto University Hospital, Kyoto, Japan., Miyake KK; Department of Advanced Imaging in Medical Magnetic Resonance, Kyoto University Hospital, Kyoto, Japan., Nakamoto Y; Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University Hospital, Kyoto, Japan.

Publikováno v: Clinical nuclear medicine [Clin Nucl Med] 2024 Nov 01; Vol. 49 (11), pp. 1053-1054. Date of Electronic Publication: 2024 Sep 25.

The effect of hormone therapy on physiological uptake of the endometrium on [ ¹⁸ F]F-FDG PET in postmenopausal women.

Autor: Nakamoto R; Preemptive Medicine and Lifestyle Related Disease Research Center, Kyoto University Hospital, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, Kyoto, 606-8507, Japan. inabook@kuhp.kyoto-u.ac.jp., Yakami M; Preemptive Medicine and Lifestyle Related Disease Research Center, Kyoto University Hospital, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, Kyoto, 606-8507, Japan., Nobashi TW; Preemptive Medicine and Lifestyle Related Disease Research Center, Kyoto University Hospital, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, Kyoto, 606-8507, Japan., Isoda H; Preemptive Medicine and Lifestyle Related Disease Research Center, Kyoto University Hospital, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, Kyoto, 606-8507, Japan., Nakamoto Y; Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.

Publikováno v: Annals of nuclear medicine [Ann Nucl Med] 2024 Sep; Vol. 38 (9), pp. 726-733. Date of Electronic Publication: 2024 May 18.

A Diaz--Metcalf type inequality for positive linear maps and its applications

Autor: Moslehian, M. S., Nakamoto, R., Seo, Y.

Publikováno v: Electron. J. Linear Algebra 22 (2011), 179-190

We present a Diaz--Metcalf type operator inequality as a reverse Cauchy-Schwarz inequality and then apply it to get the operator versions of P\'{o}lya-Szeg\"{o}'s, Greub-Rheinboldt's, Kantorovich's, Shisha-Mond's, Schweitzer's, Cassels' and Klamkin-M

Externí odkaz: http://arxiv.org/abs/1102.5492