带源项的非线性扩散方程的高阶Lie-Bcklund对称
- ISSN号:0438-0479
- 期刊名称:《厦门大学学报:自然科学版》
- 时间:0
- 分类:O316[理学—一般力学与力学基础;理学—力学] TK730.323[交通运输工程—轮机工程;动力工程及工程热物理—流体机械及工程]
- 作者机构:[1]Center for Nonlinear Studies, Northwest University, Xi'an 710069, China, [2]Department of Mathematics, Northwest University, Xi'an 710069, China, [3]Center for the History of Mathematics and Science, Northwest University, Xi'an 710069, China
- 相关基金:Supported by the National Natural Science Foundation of China under Grant Nos. 11071195 and 10926082; China Postdoctoral Science Foundation under Grant No. 20090461305; the National Natural Science Foundation of Shaawxi Province under Grant No. 2009JQ1003; the Program of Shaanxi Provincial Department of Education under Grant Nos. 09JK770 and 11JK0482
关键词:
LIE对称性, 梯度方程, 跨音速, 压力, 和集, 二维空间, 优化系统, 对称群, transonic pressure-gradient equations, Lie symmetry, optimal system, group-invariant solution
中文摘要:
<正> Lie symmetry group method is applied to study the transonic pressure-gradient equations in two-dimensionalspace.Its symmetry groups and corresponding optimal systems are determined,and several classes of irrotational groupinvariantsolutions associated to the symmetries are obtained and special case of one-dimensional rarefaction wave isfound.
英文摘要:
Lie symmetry group method is applied to study the transonic pressure-gradient equations in two-dimensional space. Its symmetry groups and corresponding optimal systems are determined, and several classes of irrotational groupinvariant solutions associated to the symmetries are obtained and special case of one-dimensional rarefaction wave is found.