The unit ball of \({\mathcal P}(^2\ell_2^2)\)
type: Item
instance of: scholarly article
title: The unit ball of \({\mathcal P}(^2\ell_2^2)\)
zbMATH Open document ID: 0937.46043
author: Yun Sung Choi
author: Sung Guen Kim
published in: Archiv der Mathematik
publication date: 2000-05-23T00:00:00Z
review text: Extreme points and smooth points of the unit ball of \(P(^2 \ell_2 ^2)\) are characterised. Also, a formula is given for the norm of a 2-homogeneous polynomial on \(\ell_\infty ^2\).
Mathematics Subject Classification ID: 46G25
Mathematics Subject Classification ID: 46E15
Mathematics Subject Classification ID: 46B20
zbMATH DE Number: 1292438
zbMATH Keywords: extreme points
zbMATH Keywords: smooth points
zbMATH Keywords: unit ball
reviewed by: Ignacio Zalduendo
MaRDI profile type: Publication
full work available at URL: s000130050292
OpenAlex ID: W2090707860
DOI: 10.1007/S000130050292
description: scientific article; zbMATH DE number 1292438