The royal road to automatic noncommutative real analyticity, monotonicity, and convexity
The royal road to automatic noncommutative real analyticity, monotonicity, and convexity
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通往自动非交换实解析性、单调性和凸性的康庄大道
DOI:
10.1016/j.aim.2022.108548
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发表时间:
2022
影响因子:
1.7
通讯作者:
Tully-Doyle, Ryan
中科院分区:
文献类型:
--
作者:
Pascoe, J.E.;Tully-Doyle, Ryan
It was shown classically that matrix monotone and matrix convex functions must be real analytic by Löwner and Kraus respectively. Recently, various analogues have been found in several noncommuting variables. We develop a general framework for lifting automatic analyticity theorems in matrix analysis from one variable to several variables, the so-called “royal road theorem.” That is, we establish the principle that the hard part of proving any automatic analyticity theorem lies in proving the one variable theorem. We use our main result to prove the noncommutative Löwner and Kraus theorems over operator systems as examples, including an analogue of the rational “butterfly realization” of Helton-McCullough-Vinnikov for general analytic functions.
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DOI:
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2017
期刊:
Canadian mathematical bulletin
影响因子:
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通讯作者:
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影响因子:
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