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Manuscript Title: Determination of Lie-Backlund symmetries of differential equations using FORMAC.
Authors: R.N. Fedorova, V.V. Kornyak
Program title: LB
Catalogue identifier: AADL_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 39(1986)93
Programming language: PL/1.
Computer: IBM 360/370.
Operating system: OS.
RAM: 200K words
Word size: 32
Keywords: Particle physics, Elementary, General purpose, Differential equations, Backlund-lie symmetries.
Classification: 4.3.

Nature of problem:
Lie-Backlund symmetries are the wide generalization of point and contact Lie symmetries and essentially extend the applications of the group theoretical methods in mathematical physics.

Restrictions:
In most cases the available computer memory is the severest restriction. It may only be avoided if the problem is split into several smaller ones.

Running time:
It depends heavily on the number of dependent and independent variables, the order of equations and the order of determining equations. It cannot be estimated in advance.