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Some Operator Convex Functions of Several Variables by Zhang, Zhihua is a scholarly article available to read on EtoBox.

What is Some Operator Convex Functions of Several Variables about?

We obtain operator concavity (convexity) of some functions of two or three variables by using perspectives of regular operator mappings of one or several variables. As an application, we obtain, for $ 0<p < 1,$ concavity, respectively convexity, of the Frech\'{e}t differential mapping associated with the functions $t \to t^{1+p} $ and $t \to t^{1-p}.$

Author

Zhang, Zhihua

Published

2014

Language

EN