摘要
设ｆ是紧致度量空间Ｍ上的自覆盖映射，本文证明（ａ）（ｃ）结合［２］（ａ）（ｂ）且（ａ）（ｃ）
Suppose that f be a self-covering map on a compact metric space M. This paper proves that follwing conditions are equivalent: (a) fis a Anosov map, (b) fis expansive and has the pseudo-orbit-tracting property, (c) qf has hyperbolic coordinates.
