January  2001, 7(1): 35-50. doi: 10.3934/dcds.2001.7.35

Invariant manifolds for delay endomorphisms


Universidad de La República, Facultad de Ciencias. Centro de Matemática, Iguá 4225. Montevideo 11400, Uruguay


Universidad Politéecnica de Cataluña, Departament de Matemática Aplicada 2, Escola Técnica Superior d'Enginyers Industrials. Colom 11, 08222. Terrasa, Barcelona, Spain


Universidad Centro Occidental Lisandro Alvarado, Departamento de Matemática, Decanato de Ciencias. Apartado Postal 400. Barquisimeto, Venezuela

Received  October 1999 Revised  September 2000 Published  November 2000

Let $F_\mu(x_1,\cdots,x_k)=(x_2,\cdots,x_k,-x_1^2+\mu x_1)$. For any $G$ in a $C^2$ neighborhood $\mathcal{U}$ of the family $F_\mu$, the point at $\infty$ is an attractor (with basin denoted by $B_\infty$), and there exists a repelling fixed point in the boundary of $B_\infty$. This gives the initial step to the study of the whole boundary of $B_\infty$ and the changes it suffers: for perturbations of $F_\mu$ with $\mu$ small, the boundary of $B_\infty$ is an invariant codimension one manifold, while for large values of $\mu$ the basin $B_\infty$ is dense and its complementary set an expanding Cantor set. The techniques developed will be applied to delay endomorphisms.
Citation: Rovella Alvaro, Vilamajó Francesc, Romero Neptalí. Invariant manifolds for delay endomorphisms. Discrete & Continuous Dynamical Systems - A, 2001, 7 (1) : 35-50. doi: 10.3934/dcds.2001.7.35

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