A Primer on Carnot Groups: Homogenous Groups, Carnot-Carathéodory Spaces, and Regularity of Their Isometries
Carnot groups are distinguished spaces that are rich of structure: they are those Lie groups equipped with a path distance that is invariant by left-translations of the group and admit automorphisms that are dilations with respect to the distance. We present the basic theory of Carnot groups togethe...
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De Gruyter
2018
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oai:doaj.org-article:9cdfe596c6444463aa6275b34dbd783b2021-12-05T14:10:38ZA Primer on Carnot Groups: Homogenous Groups, Carnot-Carathéodory Spaces, and Regularity of Their Isometries2299-327410.1515/agms-2017-0007https://doaj.org/article/9cdfe596c6444463aa6275b34dbd783b2018-01-01T00:00:00Zhttps://doi.org/10.1515/agms-2017-0007https://doaj.org/toc/2299-3274Carnot groups are distinguished spaces that are rich of structure: they are those Lie groups equipped with a path distance that is invariant by left-translations of the group and admit automorphisms that are dilations with respect to the distance. We present the basic theory of Carnot groups together with several remarks.We consider them as special cases of graded groups and as homogeneous metric spaces.We discuss the regularity of isometries in the general case of Carnot-Carathéodory spaces and of nilpotent metric Lie groups.Le Donne EnricoDe Gruyterarticlecarnot groupssub-riemannian geometrysub-finsler geometryhomogeneous spaceshomogeneous groupsnilpotent groupsmetric groups53c1743a8022e2522f3014m17AnalysisQA299.6-433ENAnalysis and Geometry in Metric Spaces, Vol 5, Iss 1, Pp 116-137 (2018) |
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DOAJ |
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carnot groups sub-riemannian geometry sub-finsler geometry homogeneous spaces homogeneous groups nilpotent groups metric groups 53c17 43a80 22e25 22f30 14m17 Analysis QA299.6-433 |
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carnot groups sub-riemannian geometry sub-finsler geometry homogeneous spaces homogeneous groups nilpotent groups metric groups 53c17 43a80 22e25 22f30 14m17 Analysis QA299.6-433 Le Donne Enrico A Primer on Carnot Groups: Homogenous Groups, Carnot-Carathéodory Spaces, and Regularity of Their Isometries |
description |
Carnot groups are distinguished spaces that are rich of structure: they are those Lie groups equipped with a path distance that is invariant by left-translations of the group and admit automorphisms that are dilations with respect to the distance. We present the basic theory of Carnot groups together with several remarks.We consider them as special cases of graded groups and as homogeneous metric spaces.We discuss the regularity of isometries in the general case of Carnot-Carathéodory spaces and of nilpotent metric Lie groups. |
format |
article |
author |
Le Donne Enrico |
author_facet |
Le Donne Enrico |
author_sort |
Le Donne Enrico |
title |
A Primer on Carnot Groups: Homogenous Groups, Carnot-Carathéodory Spaces, and Regularity of Their Isometries |
title_short |
A Primer on Carnot Groups: Homogenous Groups, Carnot-Carathéodory Spaces, and Regularity of Their Isometries |
title_full |
A Primer on Carnot Groups: Homogenous Groups, Carnot-Carathéodory Spaces, and Regularity of Their Isometries |
title_fullStr |
A Primer on Carnot Groups: Homogenous Groups, Carnot-Carathéodory Spaces, and Regularity of Their Isometries |
title_full_unstemmed |
A Primer on Carnot Groups: Homogenous Groups, Carnot-Carathéodory Spaces, and Regularity of Their Isometries |
title_sort |
primer on carnot groups: homogenous groups, carnot-carathéodory spaces, and regularity of their isometries |
publisher |
De Gruyter |
publishDate |
2018 |
url |
https://doaj.org/article/9cdfe596c6444463aa6275b34dbd783b |
work_keys_str_mv |
AT ledonneenrico aprimeroncarnotgroupshomogenousgroupscarnotcaratheodoryspacesandregularityoftheirisometries AT ledonneenrico primeroncarnotgroupshomogenousgroupscarnotcaratheodoryspacesandregularityoftheirisometries |
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