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Zbl 0918.34007
Sherring, J.; Head, A.K.; Prince, G.E.
DIMSYM and LIE: Symmetry determination packages. (English)
[J] Math. Comput. Modelling 25, No.8-9, 153-164 (1997). ISSN 0895-7177

The authors describe the features of two software packages named DIMSYM and LIE. While LIE is written in LISP and runs under DOS the DIMSYM package is written in REDUCE. Both packages are dealing with Lie symmetries of differential equations. The paper includes examples and lists commands of the packages giving explainations of their functionality. While internal details of the algorithms are explained knowledge of the theory of Lie symmetries of partial differential equations is assumed. For an overview of related software it is referred to W. Hereman [Euromath Bulletin 2, 1993].
[Karin Gatermann (Berlin)]

MSC 2000:: *34A25 Analytical theory of ODE
68W30 Symbolic computation and algebraic computation
22E99 Lie groups
35C99 Representations of solutions of PDE

Keywords: Lie group; software packages; Lie symmetries; partial differential equations

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