Symmetry and differential equations
Symmetry and differential equations
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对称性和微分方程
DOI:
10.2307/3617402
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发表时间:
1977
影响因子:
0.3
通讯作者:
J. Greenman
中科院分区:
文献类型:
--
作者:
J. Greenman
An interesting example of the usefulness of group theory occurs in the solution of first order differential equations. If such an equation retains its form under each member of a group of transformations on the plane then, under certain circumstances, we can determine from the structure of the group new variables in which the equation is separable and hence solvable by integration. In the first section we show how to construct the new variables and in the second we prove separability.