Solvable approximations of 3-dimensional almost-Riemannian structures

Philippe Jouan; Ronald Manríquez

doi:10.3934/mcrf.2021023

Article Contents

2022, Volume 12, Issue 2: 303-326. Doi: 10.3934/mcrf.2021023

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Solvable approximations of 3-dimensional almost-Riemannian structures

Philippe Jouan^1, , and
Ronald Manríquez^2,

1.
Lab. R. Salem, CNRS UMR 6085, Université de Rouen, avenue de l'université BP 12, 76801 Saint Étienne-du-Rouvray, France
2.
Université Paris-Saclay, CNRS, CentraleSupélec, Laboratoire des signaux et systèmes, 91190 Gif-sur-Yvette, France

^* Corresponding author: philippe.jouan@univ-rouen.fr
^* Corresponding author: philippe.jouan@univ-rouen.fr

Received: October 2020

Early access: March 2021

Published: June 2022

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Abstract

In some cases, the nilpotent approximation of an almost-Riemannian structure can degenerate into a constant rank sub-Riemannian one. In those cases, the nilpotent approximation can be replaced by a solvable one that turns out to be a linear ARS on a nilpotent Lie group or a homogeneous space.

The distance defined by the solvable approximation is analyzed in the 3D-generic cases. It is shown that it is a better approximation of the original distance than the nilpotent one.

Keywords:

Almost-Riemannian geometry,
nilpotent approximation.

Mathematics Subject Classification: Primary: 53C15, 53C17, 22E25, 53B99.

Citation:

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Figure 1. Geodesics for $ \theta\in\left\{0,\frac{\pi}{3},\frac{2\pi}{3},\pi,\frac{4\pi}{6},\frac{5\pi}{6}\right\} $ when $ r = 0 $

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Figure 2. Ball in 3-D generic case

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References

[1]	R. Abraham, J. E. Marsden and T. Ratoiu, Manifolds, Tensor Analysis, and Applications, Second edition, Applied Mathematical Sciences, 75. Springer-Verlag, New York, 1988. doi: 10.1007/978-1-4612-1029-0.
[2]	A. A. Agrachev, U. Boscain, G. Charlot, R. Ghezzi and M. Sigalotti, Two-dimensional almost-Riemannian structures with tangency points, Ann. Inst. H. Poincaré Anal. Non Linéaire, 27 (2010), 793-807. doi: 10.1016/j.anihpc.2009.11.011.
[3]	A. Agrachev, U. Boscain and M. Sigalotti, A Gauss-Bonnet-like formula on two-dimensional almost-Riemannian manifolds, Discrete and Continuous Dynamical Systems, 20 (2008), 801-822. doi: 10.3934/dcds.2008.20.801.
[4]	A. Agrachev, D. Barilari and U. Boscain, A Comprehensive Introduction to Sub-Riemannian Geometry, Cambridge Studies in Advanced Mathematics, 181. Cambridge University Press, Cambridge, 2020.
[5]	V. Ayala and P. Jouan, Almost-Riemannian geometry on Lie groups, SIAM Journal on Control and Optimization, 54 (2016), 2919-2947. doi: 10.1137/15M1038372.
[6]	V. Ayala and J. Tirao, Linear control systems on Lie groups and controllability, Proceedings of Symposia in Pure Mathematics, 64 (1999), 47-64. doi: 10.1090/pspum/064/1654529.
[7]	A. Bellaïche, The Tangent space in sub-Riemannian geometry, Sub-Riemannian geometry, Progr. Math., Birkhäuser, Basel, 144 (1996), 1-78. doi: 10.1007/978-3-0348-9210-0_1.
[8]	B. Bonnard, J.-B. Caillau, R. Sinclair and M. Tanaka, Conjugate and cut loci of a two-sphere of revolution with application to optimal control, Ann. Inst. H. Poincaré Anal. Non Linéaire, 26 (2009), 1081-1098. doi: 10.1016/j.anihpc.2008.03.010.
[9]	B. Bonnard, G. Charlot, R. Ghezzi and G. Janin, The sphere and the cut locus at a tangency point in two-dimensional almost-Riemannian geometry, Journal of Dynamical and Control Systems, 17 (2011), 141-161. doi: 10.1007/s10883-011-9113-4.
[10]	U. Boscain, G. Charlot, M. Gaye and P. Mason, Local properties of almost-Riemannian structures in dimension 3, Discrete Contin. Dyn. Syst., 35 (2015), 4115-4147. doi: 10.3934/dcds.2015.35.4115.
[11]	U. Boscain, G. Charlot and R. Ghezzi, Normal forms and invariants for 2-dimensional almost-Riemannian structures, Differential Geometry and its Applications, 31 (2013), 41-62. doi: 10.1016/j.difgeo.2012.10.001.
[12]	U. Boscain, G. Charlot, R. Ghezzi and M. Sigalotti, Lipschitz classification of almost-Riemannian distances on compact oriented surfaces, Journal of Geometric Analysis, 23 (2013), 438-455. doi: 10.1007/s12220-011-9262-4.
[13]	N. Bourbaki, Eléments De Mathematique. Groupes et Algèbres de Lie: Chapitres 2 et 3, 2nd edition, Germany: Springer Verlag, 2007.
[14]	P. F. Byrd and M. D. Friedman, Handbook of Elliptic Integrals for Engineers and Physicists, Springer-Verlag, Berlin-G?ttingen-Heidelberg, 1954.
[15]	A. Elías-Zúñiga, A general solution of the Duffing equation, Nonlinear Dynamics, 45 (2006), 227-235. doi: 10.1007/s11071-006-1858-z.
[16]	F. Jean, Control of Nonholonomic Systems: From Sub-Riemannian Geometry to Motion Planning, SpringerBriefs in Mathematics, Springer International Publishing, 2014. doi: 10.1007/978-3-319-08690-3.
[17]	P. Jouan, Equivalence of control systems with linear systems on Lie groups and homogeneous spaces, ESAIM: Control, Optimisation and Calculus of Variations, 16 (2010), 956-973. doi: 10.1051/cocv/2009027.
[18]	P. Jouan, G. Zsigmond and V. Ayala, Isometries of almost-Riemannian structures on Lie groups, Differential Geometry and its Applications, 61 (2018), 59-81. doi: 10.1016/j.difgeo.2018.08.003.