The method was based on a homeomorphic transformation of the infinity into the origin(linear singular point).

用一同胚变换将无穷远点转变成原点（初等奇点）。

youdao

The method was based on a homeomorphic transformation of the infinity into the origin(linear singular point).

用一同胚变换将无穷远点转变成原点（初等奇点）。

youdao