TITLE: On the stability of the Lagrangian homographic solutions in a curved 
three-body problem on S^2 

AUTHORS: 
R. Martinez
Dept. de Matematiques, Univ. Autonoma de Barcelona
Barcelona, Catalunya, Spain 
E-mail:reginamb@mat.uab.cat

C. Simo
Dept. de Matematica Aplicada i Analisi, Univ. de Barcelona
Barcelona, Catalunya, Spain
E-mail:carles@maia.ub.es

ABSTRACT:
The problem of three bodies with equal masses in S^2 is known to have 
Lagrangian homographic orbits. We study the linear stability and also a
"practical" (or effective) stability of these orbits on the unit sphere.

Preprint submitted to Discrete and Continuous Dynamical Systems, B, May 2011.