拟保角映射
Let f be a covering mapping of a compact manifold M without boundary. It is shown that the necessary and sufficient condition of the quasi-hyperbolic covering mapping of f is that ( I-f) is injective and has closed range.
设f是紧致不带边流形M上的覆盖映射,证明了f是拟双曲覆盖映射的充分必要条件是(I-f*)为单射且有闭值域。
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