Hermitian operators and convex functions

Abstract

Several inequalities for eigenvalues involving convex combinations and compressions are given. These inequalities are matrix version of the basic convexity inequality f((a+b)/2) < (f(a)+f(b))/2.

to appear in JIPAM vol. 6

Cited by in corpus (1)

• Unitary orbits of Hermitian operators with convex or concave functions