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Manuscript Title: A REDUCE package for determining Lie symmetries of ordinary and partial differential equations.
Authors: F. Schwarz
Program title: LIE0, LIE1, LIE2, LIE3, LIE4
Catalogue identifier: AAZB_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 27(1982)179
Programming language: LISP.
Computer: SIEMENS 7.760.
Operating system: BS 2000.
RAM: 400K words
Word size: 32
Keywords: General purpose, Lie algebra, Ordinary differential Equations, Partial differential, Lie symmetries, Computer algebra.
Classification: 4.2, 5.

Nature of problem:
Lie symmetries of differential equations play an important role in all branches of physics. Usually they have a physical meaning. To know all Lie symmetries for a given problem is therefore of utmost importance because it usually leads to additional physical insight.

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 and the structure of the problem. It cannot be estimated in advance.