An Introduction to Matrix Convex Sets and Free Spectrahedra
An Introduction to Matrix Convex Sets and Free Spectrahedra
复制标题
矩阵凸集和自由光谱面体简介
DOI:
10.1007/s11785-019-00937-8
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发表时间:
2019
影响因子:
0.8
通讯作者:
T.-L. Kriel
中科院分区:
文献类型:
--
作者:
T.-L. Kriel
The purpose of this paper is to give a self-contained overview of the theory of matrix convex sets and free spectrahedra. We will give new proofs and generalizations of key theorems. However we will also introduce various new concepts and results as well. Key contributions of this paper areA new general Krein–Milman theorem that characterizes the smallest operator tuple defining a compact matrix convex set.An introduction and a characterization of matrix exposed points.A (weak) Minkowski theorem in the language of matrix extreme points (with a new proof of the weak Krein–Milman theorem of Webster and Winkler).Simplified/new proofs of the Gleichstellensatz, Helton and McCullough’s characterization of free spectrahedra as closures of matrix convex “free basic open semialgebraic” sets and a characterization of hermitian irreducible free loci of Helton, Klep and Voli.
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影响因子:
3
作者:
T.-L. Kriel;M. Schweighofer
通讯作者:
M. Schweighofer
影响因子:
0.9
作者:
I. Klep;Jurij Volčič
通讯作者:
Jurij Volčič
DOI:
--
发表时间:
1994
期刊:
Canadian Journal of Mathematics - Journal Canadien de Mathematiques
影响因子:
--
作者:
P. B. Morenz
通讯作者:
P. B. Morenz
影响因子:
1.7
作者:
J. Helton;I. Klep;Jurij Volčič
通讯作者:
Jurij Volčič
DOI:
10.1007/s12220-017-9866-4
发表时间:
2016
期刊:
The Journal of Geometric Analysis
影响因子:
--
作者:
Eric Evert;J. Helton;I. Klep;S. McCullough
通讯作者:
S. McCullough