Regular and irregular geodesics on spherical harmonic surfaces

Details Regular and irregular geodesics on spherical harmonic surfaces Regular and irregular geodesics on spherical harmonic surfaces

2011-12-14

arxiv.org/abs/1112.3231v1

Mathematics

Dynamical Systems

Accepted Physica D : Nonlinear Phenomena; 25 pages, 3 figures

Scientific paper

10.1016/j.physd.2011.11.010

The behavior of geodesic curves on even seemingly simple surfaces can be surprisingly complex. In this paper we use the Hamiltonian formulation of the geodesic equations to analyze their integrability properties. In particular, we examine the behavior of geodesics on surfaces defined by the spherical harmonics. Using the Morales-Ramis theorem and Kovacic algorithm we are able to prove that the geodesic equations on all surfaces defined by the sectoral harmonics are not integrable, and we use Poincar\'{e} sections to demonstrate the breakdown of regular motion.

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