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Dynamical Systems

Dynamics Session #1.1

Subevent of Dynamics Session #1

Heritage Hall Building 121

Bhattacharya

Times: 2026 Mar 11 from 10:20AM to 10:50AM (Central Time (US & Canada))

Triod twist cycles and circle rotations

Sourav Bhattacharya <sourav9221@gmail.com>, Visvesvaraya National Institute of Technology, Nagpur, India

Abstract:

We study the problem of relating cycles on a triod Y to circle rotations. We prove that a triod-twist cycle P, the simplest cycle on a triod with a given rotation number ρ, is conjugate to circle rotation, by angle ρ, restricted to one of its cycles Q. Further, the conjugacy Ψ : PQ is piece-wise monotone and its modality exceeds the modality m of P by at-most 3. This explicit bound m+3 serves as a combinatorial distortion principle, where the additive constant “+3” represents the “topological cost” imposed by the valence of the branching point a.

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