摘要In this letter applying the results about structural stabilities （cf. R. Maé & C. Pugh, Dynamical Systems-Warwick 1974, Lecture Notes Math., Vol. 468）, we study the π<sub>1</sub> property of Anosov endomorphisms on tori. We have proved the
9QIAN Dingbian & SUN Xiying School of Mathematical Sciences, Suzhou University, Suzhou 215006, China,Laboratory of Mathematics for Nonlinear Sciences, Fudan University, Shanghai 200433, China.Invariant tori for asymptotically linear impact oscillators[J].Science China Mathematics,2006,49(5):669-687. 被引量：5
