SELF-SIMILARITY AND UNIVERSALITY IN CHUA'S CIRCUIT VIA THE APPROXIMATE CHUA'S 1-D MAP

Abstract
In this paper we investigate the features of the transition to chaos in a one-dimensional Chua's map which describes approximately the Chua's circuit. These features arise from the nonunimodality of this map. We show that there exists a variety of types of critical points, which are characterized by a universal self-similar topography in a neighborhood of each critical point in the parameter plane. Such universalities are associated with various cycles of Feigenbaum's renormalization group equation.

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