Computer Physics Communications Program LibraryPrograms in Physics & Physical Chemistry |

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Manuscript Title: A REDUCE program for determining point and contact lie symmetries of
differential equations. | ||

Authors: V.P. Eliseev, R.N. Fedorova, V.V. Kornyak | ||

Program title: LIE | ||

Catalogue identifier: AABS_v1_0Distribution format: gz | ||

Journal reference: Comput. Phys. Commun. 36(1985)383 | ||

Programming language: Reduce. | ||

Computer: IBM 360/370. | ||

Operating system: OS. | ||

RAM: 400K words | ||

Word size: 32 | ||

Keywords: General purpose, Differential equations, Lie symmetries, Point transformation, Contact transformation, Reduce. | ||

Classification: 4.3, 5. | ||

Nature of problem:Point and contact symmetries of differential equations play an important role in mathematical physics. Knowledge of all Lie symmetry transformations gives important information about the given differential equations. | ||

Restrictions:The available computer memory is the severest restriction. It may be only avoided by splitting the problem into several smaller parts. | ||

Running time:This depends strongly on the order of differential equations and the number of dependent and independent variables. It cannot be estimated in advance. |

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