Invariant structure preserving functions and an Oka-Weil Kaplansky density type theorem
Invariant structure preserving functions and an Oka-Weil Kaplansky density type theorem
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不变结构保持函数和 Oka-Weil Kaplansky 密度型定理
DOI:
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
J. Pascoe
中科院分区:
文献类型:
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作者:
J. Pascoe
We develop the theory of invariant structure preserving and free functions on a general structured topological space. We show that an invariant structure preserving function is pointwise approximiable by the appropriate analog of polynomials in the strong topology and therefore a free function. Moreover, if a domain of operators on a Hilbert space is polynomially convex, the set of free functions satisfies a Oka-Weil Kaplansky density type theorem -- contractive functions can be approximated by contractive polynomials.
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影响因子:
1.3
作者:
Dym, Harry;Helton, J. William;Klep, Igor;McCullough, Scott;Volčič, Jurij
通讯作者:
Volčič, Jurij
DOI:
10.1016/j.jfa.2016.06.010
发表时间:
1920
期刊:
arXiv: Operator Algebras
影响因子:
--
作者:
J.A. Ball;G. Marx;V. Vinnikov
通讯作者:
V. Vinnikov
影响因子:
1.2
作者:
Pascoe, J. E.
通讯作者:
Pascoe, J. E.
DOI:
10.1007/s11854-018-0070-7
发表时间:
2019
期刊:
Journal d'Analyse Mathématique
影响因子:
--
作者:
Agler, Jim;McCarthy, John E.
通讯作者:
McCarthy, John E.
影响因子:
1.8
作者:
Jekel, David;Li, Wuchen;Shlyakhtenko, Dimitri
通讯作者:
Shlyakhtenko, Dimitri