2012/10/31 by Lana Horvat Dmitrović, L. Horvat Dmitrović, Dmitrović, L. Horvat
Mathematics · Physics and Astronomy · #26A18 #34C23 #37C45 #37G15 #Advanced Differential Equations and Dynamical Systems #Dynamical Systems (math.DS) #FOS: Mathematics #Mathematical Dynamics and Fractals #Quantum chaos and dynamical systems #math.DS #msc:26A18 #msc:34C23 #msc:37C45 #msc:37G15
paper · pdf · doi:10.48550/arxiv.1210.8202
37 pages, 21 figures
arxiv created 2012/10/31 · openalex publication_date 2012/10/31 · arxiv updated 2012/11/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this paper we show how a change of box dimension of the orbits of two-dimensional discrete dynamical systems is connected to bifurcations in a nonhyperbolic fixed point. This connection is already shown in the case of one-dimensional discrete dynamical systems. Namely, at the bifurcation point the box dimension changes from zero to a certain positive value which is connected to the type of bifurcation. First, we study a two-dimensional discrete dynamical system with only one multiplier on the unit circle, and get the result for the box dimension of the orbit on the center manifold. Then we consider the planar discrete system undergoing a Neimark-Sacker bifurcation. It shows that the box dimension depends on the order of the nondegeneracy at the nonhyperbolic fixed point and on the angle-displacement map. We prove that the box dimension is different in rational and irrational case as we initially expected.