In this paper, a concise review is presented, of how the scaling transformation group can be employed to determine a modified boundary value problem [6,10,11], which is invariant under an extended two-parameter scaling group. The main contribution is then to show that since the non-physical scaling parameter in the extended group is unity, a simple iterative method which does not require an extended group can be deduced.

中文翻译：

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边值问题向初值问题转化的注解：迭代变换法

在本文中，简要回顾了如何使用标度变换组来确定修改的边界值问题 [6,10,11]，该问题在扩展的双参数标度组下是不变的。主要贡献是证明由于扩展群中的非物理标度参数是统一的，所以可以推导出一个不需要扩展群的简单迭代方法。