The completeness problem on the pseudo-homothetic Lie group

Fuente: arXiv
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Main Authors: Chaib, Salah, Ferreira, Ana Cristina, Zeghib, Abdelghani
Format: Preprint
Published: 2024
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author Chaib, Salah
Ferreira, Ana Cristina
Zeghib, Abdelghani
author_facet Chaib, Salah
Ferreira, Ana Cristina
Zeghib, Abdelghani
contents Let us call pseudo-homothetic group the non-unimodular 3-dimensional Lie group that is the semi-direct product of $\mathbb{R}$ acting non-semisimply on $\mathbb{R}^2$. In this article, we solve the geodesic completeness problem on this Lie group. In particular, we exhibit a family of complete metrics such that all geodesics have bounded velocity. As an application, we show that the set of complete metrics is not closed.
format Preprint
id arxiv_https___arxiv_org_abs_2410_20612
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The completeness problem on the pseudo-homothetic Lie group
Chaib, Salah
Ferreira, Ana Cristina
Zeghib, Abdelghani
Differential Geometry
53C22, 53C30, 53C50
Let us call pseudo-homothetic group the non-unimodular 3-dimensional Lie group that is the semi-direct product of $\mathbb{R}$ acting non-semisimply on $\mathbb{R}^2$. In this article, we solve the geodesic completeness problem on this Lie group. In particular, we exhibit a family of complete metrics such that all geodesics have bounded velocity. As an application, we show that the set of complete metrics is not closed.
title The completeness problem on the pseudo-homothetic Lie group
topic Differential Geometry
53C22, 53C30, 53C50
url https://arxiv.org/abs/2410.20612