Programs in Physics & Physical Chemistry
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|Manuscript Title: A computer program for integrals of motion.|
|Authors: A. Giorgilli|
|Program title: COSTANTI DEL MOTO|
|Catalogue identifier: ACYO_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 16(1979)331|
|Programming language: Fortran.|
|Computer: UNIVAC 1106.|
|Operating system: UNIVAC 1106 EXEC 8.|
|RAM: 42K words|
|Word size: 36|
|Keywords: Astrophysics, Celestial mechanics, Classical mechanics, Stellar systems, Integrals of motion, Stars.|
Nature of problem:
The classical problem of constructing formal integrals for a Hamiltonian of harmonic oscillators coupled by polynomial interactions is considered.
An algorithm recently proposed is applied which allows very fast computation of the integrals.
The restrictions, imposed by array dimensions, are described in tdetail in the long write up.
The computation of one integral up to order 8 for a model with 2 degrees of freedom required an execution time of about 25 s on the UNIVAC 1106.
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