The Ramsey property for Banach spaces and Choquet simplices, and applications

被引:4
作者
Bartosova, Dana [1 ]
Lopez-Abad, Jordi [2 ]
Lupini, Martino [3 ]
Mbombo, Brice [4 ]
机构
[1] Carnegie Mellon Univ, Dept Math Sci, Pittsburgh, PA 15213 USA
[2] UNED, Fac Ciencias, Dept Matemat Fundamentales, Madrid 28040, Spain
[3] CALTECH, Math Dept, 1200 E Calif Blvd,MC 253-37, Pasadena, CA 91125 USA
[4] Univ Ottawa, Dept Math & Stat, Ottawa, ON K1N 6N5, Canada
基金
巴西圣保罗研究基金会;
关键词
FRAISSE LIMITS; FLOWS;
D O I
10.1016/j.crma.2017.11.001
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We show that the class of finite-dimensional Banach spaces and the class of finite-dimensional Choquet simplices have the Ramsey property. As an application, we show that the group Aut(G) of surjective linear isometries of the Gurarij space G is extremely amenable, and that the canonical action Aut(P) curved right arrow P is the universal minimal flow of the group Aut(P) of affine homeomorphisms of the Poulsen simplex P. This answers questions of Melleray-Tsankov and Conley-Tornquist. (C) 2017 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
引用
收藏
页码:1242 / 1246
页数:5
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