A reduce package for determining lie symmetries of ordinary and partial differential equations

✍ Scribed by Fritz Schwarz

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 558 KB
• Volume: 27
• Category: Article
• ISSN: 0010-4655
• DOI: 10.1016/0010-4655(82)90072-8

✦ Synopsis

Lie symmetries of differential equations play an important role versity in Belfast, N. Ireland (see application form in this issue) in all branches of physics. Usually they have a physical meaning. To know all Lie symmetries for a given problem is there-Computer: Siemens 7.760 fore of utmost importance because it usually leads to additional physical insight. Operating system: BS 2000 Restrictions on the complexity of the problem Programming language used: LISP In most cases the available computer memory is the severest restriction. It may only be avoided if the problem is split into High speed storage required: depends on the problem, minimum several smaller ones. about 400000 bytes Running time No. of bits in a word: 32 It depends heavily on the number of dependent and independent variables and the structure of the problem. It cannot be Number of cards in combined program and test deck: 200 estimated in advance.