1 research outputs found
Some inequalities for operator (p,h)-convex functions
Let be a positive number and a function on satisfying
for any . A non-negative
continuous function on is said to be {\it
operator -convex} if \begin{equation*}\label{def} f ([\alpha A^p +
(1-\alpha)B^p]^{1/p}) \leq h(\alpha)f(A) +h(1-\alpha)f(B) \end{equation*} holds
for all positive semidefinite matrices of order with spectra in ,
and for any .
In this paper, we study properties of operator -convex functions and
prove the Jensen, Hansen-Pedersen type inequalities for them. We also give some
equivalent conditions for a function to become an operator -convex. In
applications, we obtain Choi-Davis-Jensen type inequality for operator
-convex functions and a relation between operator -convex
functions with operator monotone functions