Horizontal curvatures of surfaces in 3D contact sub-Riemannian Lie groups

Fuente: arXiv
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Autores principales: Bubani, Elia, Pinamonti, Andrea, Platis, Ioannis D., Tsolis, Dimitrios
Formato: Preprint
Publicado: 2026
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author Bubani, Elia
Pinamonti, Andrea
Platis, Ioannis D.
Tsolis, Dimitrios
author_facet Bubani, Elia
Pinamonti, Andrea
Platis, Ioannis D.
Tsolis, Dimitrios
contents In this paper we study horizontal curvatures for surfaces embedded in three-dimensional contact sub-Riemannian Lie groups. Using a Riemannian approximation scheme, we derive explicit formulas for horizontal Gauss curvature, horizontal mean curvature, and symplectic distortion for surfaces embedded in three dimensional Lie groups with a sub-Riemannian structure obtained by a contact form. We focus on two primary examples: the Heisenberg group and the affine-additive group. We classify surfaces of revolution within these groups that exhibit constant horizontal curvatures, often expressing their profiles through elementary or elliptic integrals.
format Preprint
id arxiv_https___arxiv_org_abs_2603_08330
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Horizontal curvatures of surfaces in 3D contact sub-Riemannian Lie groups
Bubani, Elia
Pinamonti, Andrea
Platis, Ioannis D.
Tsolis, Dimitrios
Differential Geometry
53C17, 53D10
In this paper we study horizontal curvatures for surfaces embedded in three-dimensional contact sub-Riemannian Lie groups. Using a Riemannian approximation scheme, we derive explicit formulas for horizontal Gauss curvature, horizontal mean curvature, and symplectic distortion for surfaces embedded in three dimensional Lie groups with a sub-Riemannian structure obtained by a contact form. We focus on two primary examples: the Heisenberg group and the affine-additive group. We classify surfaces of revolution within these groups that exhibit constant horizontal curvatures, often expressing their profiles through elementary or elliptic integrals.
title Horizontal curvatures of surfaces in 3D contact sub-Riemannian Lie groups
topic Differential Geometry
53C17, 53D10
url https://arxiv.org/abs/2603.08330