A Cornucopia of Carnot Groups in Low Dimensions-Reference-Cited by-同舟云学术

A Cornucopia of Carnot Groups in Low Dimensions

Published:2022-01-01 Issue:1 Volume:10 Page:155-289
ISSN:2299-3274
Container-title:Analysis and Geometry in Metric Spaces
language:en
Short-container-title:

Author:

Le Donne Enrico¹,Tripaldi Francesca²

Affiliation:

1. Department of Mathematics , University of Fribourg , Fribourg , Switzerland & Department of Mathematics and Statistics , University of Jyväskylä , Jyväskylä , Finland

2. Mathematisches Institut , University of Bern , Bern , Switzerland

Abstract

Abstract Stratified groups are those simply connected Lie groups whose Lie algebras admit a derivation for which the eigenspace with eigenvalue 1 is Lie generating. When a stratified group is equipped with a left-invariant path distance that is homogeneous with respect to the automorphisms induced by the derivation, this metric space is known as Carnot group. Carnot groups appear in several mathematical contexts. To understand their algebraic structure, it is useful to study some examples explicitly. In this work, we provide a list of low-dimensional stratified groups, express their Lie product, and present a basis of left-invariant vector fields, together with their respective left-invariant 1-forms, a basis of right-invariant vector fields, and some other properties. We exhibit all stratified groups in dimension up to 7 and also study some free-nilpotent groups in dimension up to 14.

Publisher

Walter de Gruyter GmbH

Subject

Applied Mathematics,Geometry and Topology,Analysis

Link

https://www.degruyter.com/document/doi/10.1515/agms-2022-0138/pdf

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