A reduce program for finding symmetries of nonlinear evolution equations with uniform rank

Abstract Title of program: DRANK, DRANK2, SYM, SYM2, SYMS Catalogue number: AALS Program obtainable from: CPC Program Library, Queen's University of Belfast, N. Ireland (see application form in this issue) Computer: HITAC M-200H Operating system: VOS 3 Programming language used: REDUCE 3.0, RLISP High speed storage required: depends on the problem, minimum about 1000 Kbytes No. of bits in a word: 32 No. of lines in combined program and test deck: 913 Title of program: DRANK, DRANK2, SYM, SYM2, SYMS Catalogue Id: AADG_v2_0 [AALS] Nature of problem Find the symmetries of the given evolution equation: This is important because it enables us to know the qualitative nature of the equation and leads to physical insight. Versions of this program held in the CPC repository in Mendeley Data AADG_v1_0; DRANK, CONSD, CONSD2; 10.1016/0010-4655(85)90109-2 AADG_v2_0; DRANK, DRANK2, SYM, SYM2, SYMS; 10.1016/0010-4655(86)90005-6 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)摘要 程序名称：DRANK、DRANK2、SYM、SYM2、SYMS 馆藏编号：AALS 程序获取途径：北爱尔兰贝尔法斯特女王大学CPC程序库（参见本刊内申请表） 适用计算机：HITAC M-200H 操作系统：VOS 3 所用编程语言：REDUCE 3.0、RLISP 所需高速存储空间：依具体问题而定，最低约1000 KB 字长：32位 程序与测试用例总代码行数：913行 程序名称：DRANK、DRANK2、SYM、SYM2、SYMS 馆藏编号：AADG_v2_0 [AALS] ## 问题本质 求解给定演化方程的对称性：该研究具备重要意义，可帮助研究者掌握方程的定性性质并获得物理层面的深入认知。 ### Mendeley Data中CPC程序库存档的该程序版本 1. AADG_v1_0；DRANK、CONSD、CONSD2；10.1016/0010-4655(85)90109-2 2. AADG_v2_0；DRANK、DRANK2、SYM、SYM2、SYMS；10.1016/0010-4655(86)90005-6 本程序源自贝尔法斯特女王大学馆藏的CPC程序库（1969-2019）