2 papers
math.OA2015
On Normalizers of -Subalgebras in the Cuntz Algebra . II
Tomohiro Hayashi, Wojciech Szymanski
We investigate subalgebras of the Cuntz algebra that arise as finite direct sums of corners of the UHF-subalgebra . For such an , we complet…
math.FA2012
A note on the Jensen inequality for self-adjoint operators. II
Tomohiro Hayashi
This is a continuation of our previous paper. We consider a certain order-like relation for positive operators on a Hilbert space. This relation is defined by using the Jensen ineq…