【摘要】 文[1]给出了方程(1)的延拓结构,并由延拓结构引出了方程(2),(3),(4),本文在此基础上,通过适当变换给出这些方程以及与它们密切相关的一些方程的联系,并讨论了有关方程的对称和强对称,为更进一步讨论其它问题奠定基础。更多还原

【Abstract】 The paper[1]gives prolongation structure of equation(l) and leads out equations (2 ), (3), (4)from prolongation structure. On this base this paper gives relation between the above equations and the equations being closely related by proper transformation,and discusses symmetry and strong symmetry about some equations. It lays a foundation for further discussing other questions.更多还原