Answers are grounded in this paper and cite their sources.
We propose a notion of operator monotonicity for functions of several variables, which extends the well known notion of operator monotonicity for functions of only one variable. The notion is chosen such that a fundamental relationship between operator convexity and operator monotonicity for functions of one variable is extended also to functions of several variables.
No takes yet. Share an insight, caveat, or question.
Frank Hansen (2003) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: