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Proceedings of the American Mathematical Society

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Homoclinic points of mappings of the interval

Author: Louis Block
Journal: Proc. Amer. Math. Soc. 72 (1978), 576-580
MSC: Primary 58F20; Secondary 28D20, 54H20
MathSciNet review: 509258
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Abstract: Let f be a continuous map of a closed interval I into itself. A point $ x \in I$ is called a homoclinic point of f if there is a peridoic point p of f such that $ x \ne p,x$ is in the unstable manifold of p, and p is in the orbit of x under $ {f^n}$, where n is the period of p. It is shown that f has a homoclinic point if and only if f has a periodic point whose period is not a power of 2. Furthermore, in this case, there is a subset X of I and a positive integer n, such that $ {f^n}(X) = X$ and there is a topological semiconjugacy of $ {f^n}:X \to X$ onto the full (one-sided) shift on two symbols.

References [Enhancements On Off] (What's this?)

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