三阶非线性发展方程的对称性分类。第一部分半单代数
Symmetry classification of third-order nonlinear evolution equations. Part I: Semi-simple algebras
摘要:
本文给出了$u_t=F(t,x,u,u_x, u_{xx})u_{xxx}+G(t,x,u,u_x, u_{xx})$形式的所有三阶发展方程的一个完整的点对称分类,它允许半单对称代数和这些半单李代数通过可解李代数的扩张.我们采用的方法是以前的技术,已被用于此类分类的扩展和改进。
英文摘要:
We give a complete point-symmetry classification of all third-order evolution equations of the form $u_t=F(t,x,u,u_x, u_{xx})u_{xxx}+G(t,x,u,u_x, u_{xx})$ which admit semi-simple symmetry algebras and extensions of these semi-simple Lie algebras by solvable Lie algebras. The methods we employ are extensions and refinements of previous techniques which have been used in such classifications.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。