1 citations · 1 across the 3 of their papers we have counts for
3 papers
math.FA2026
Functions and Means of Accretive Operators
Mitsuru Uchiyama
Let be a bounded accretive operator on a Hilbert space and an operator monotone function on with . Then, for , analytic function $f (A+ε…
math.FA2017★ 1 cited
Some results on strongly operator convex functions and operator monotone functions
Lawrence G. Brown, Mitsuru Uchiyama
This paper concerns three classes of real-valued functions on intervals, operator monotone functions, operator convex functions, and strongly operator convex functions. Strongly op…
math.FA2007
A matrix subadditivity inequality for f(A+B) and f(A)+f(B)
Jean-Christophe Bourin, Mitsuru Uchiyama
Let f be a non-negative concave function on the positive half-line. Let A and B be two positive matrices. Then, for all symmetric norms, || f(A+B) || is less than || f(A)+f(B) ||.…