Authors

Ying Chi

Type

Text

Type

Dissertation

Advisor

Martens, Marco | Sutherland, Scott | Winckler, Bjorn | Bonifant, Araceli.

Date

2015-12-01

Keywords

dynamics, route to chaos, two-dimensional maps | Mathematics

Department

Department of Mathematics.

Language

en_US

Source

This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree.

Identifier

http://hdl.handle.net/11401/76390

Publisher

The Graduate School, Stony Brook University: Stony Brook, NY.

Format

application/pdf

Abstract

It has long been conjectured that the two-dimensional dissipative maps, like their one-dimensional counterparts, experience the period-doubling cascade to chaos. In [CEK], Collet, Eckmann and Koch proved this conjecture for highly dissipative families. In this dissertation, we introduce the notion of nested systems that generalizes Henon maps, and construct two operators acting on the space of nested systems based on the idea of the return maps. We use the two operators to show that if a dissipative nested system satisfies some apriori bounds, then they can be replaced with simpler but dynamically equivalent nested systems. We prove that the total number of applications of the operators is bounded by the number of periodic points. When the procedure of the applications stops, we obtain ``little Henon'' maps whose dynamics are well-understood. We then show that if the first nested system of a family contains finitely many periodic points, then the family only experiences either saddle-node or periodic-doubling bifurcations. We conclude that if there are sufficiently many periodic points, then moderate dissipative nested systems can be transformed into highly dissipative ones so that the result of [CEK] applies. | 101 pages

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