株式会社極東書店トップ商品一覧Dilations, Linear Matrix Inequalities, the Matrix Cube Problem and Beta Distributions.

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Dilations, Linear Matrix Inequalities, the Matrix Cube Problem and Beta Distributions.

Dilations, Linear Matrix Inequalities, the Matrix Cube Problem and Beta Distributions.

・ISBN 978-1-4704-3455-7 paper US$ 81.00

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お気に入り
著者・編者Helton, J. William / Klep, Igor / McCullough, Scott / Schweighofer, Markus,
シリーズMemoirs of the American Mathematical Society
出版社(American Mathematical Society, US)
出版年月2019
ページ数104 pp.
言語ENG
ニュース番号<M25-12828>

解説

An operator $C$ on a Hilbert space $\mathcal H$ dilates to an operator $T$ on a Hilbert space $\mathcal K$ if there is an isometry $V:\mathcal H\to \mathcal K$ such that $C= V^* TV$. A main result of this paper is, for a positive integer $d$, the simultaneous dilation, up to a sharp factor $\vartheta (d)$, expressed as a ratio of $\Gamma $ functions for $d$ even, of all $d\times d$ symmetric matrices of operator norm at most one to a collection of commuting self-adjoint contraction operators on a Hilbert space.