Metric ultraproducts of groups -- simplicity, perfectness and torsion

Fuente: arXiv
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Main Authors: Gismatullin, Jakub, Majcher, Krzysztof, Ziegler, Martin
Format: Preprint
Published: 2020
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author Gismatullin, Jakub
Majcher, Krzysztof
Ziegler, Martin
author_facet Gismatullin, Jakub
Majcher, Krzysztof
Ziegler, Martin
contents We characterise the simplicity of metric ultraproducts of a family of metric groups. We also present several new examples of simple groups, such as metric ultraproducts of finite and infinite symmetric groups, linear groups, and interval exchange transformation groups. Using similar methods, we also examine concepts such as genericity, perfectness, and torsion.
format Preprint
id arxiv_https___arxiv_org_abs_2010_03394
institution arXiv
publishDate 2020
record_format arxiv
spellingShingle Metric ultraproducts of groups -- simplicity, perfectness and torsion
Gismatullin, Jakub
Majcher, Krzysztof
Ziegler, Martin
Group Theory
Logic
Metric Geometry
20E32, 20E45, 03C20, 12L10
We characterise the simplicity of metric ultraproducts of a family of metric groups. We also present several new examples of simple groups, such as metric ultraproducts of finite and infinite symmetric groups, linear groups, and interval exchange transformation groups. Using similar methods, we also examine concepts such as genericity, perfectness, and torsion.
title Metric ultraproducts of groups -- simplicity, perfectness and torsion
topic Group Theory
Logic
Metric Geometry
20E32, 20E45, 03C20, 12L10
url https://arxiv.org/abs/2010.03394