A multi-particle method for GALI computation is introduced with leading-order error estimates and validated numerically on the Hénon-Heiles system and β-FPU-T chain, showing reliable performance for specific parameter ranges in double precision.
Skokos, Alignment indices: a new, simple method for determining the ordered or chaotic nature of orbits, Journal of Physics A: Mathematical and General 34 (2001) 10029
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Efficient detection of chaos through the computation of the Generalized Alignment Index (GALI) by the multi-particle method
A multi-particle method for GALI computation is introduced with leading-order error estimates and validated numerically on the Hénon-Heiles system and β-FPU-T chain, showing reliable performance for specific parameter ranges in double precision.