On the Global Curve Attractor for polynomial gluing

Fuente: arXiv
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Main Author: Wu, Panjing
Format: Preprint
Published: 2026
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author Wu, Panjing
author_facet Wu, Panjing
contents Pilgrim's Finite Global Attractor Conjecture has been verified for polynomials [1], but remains open for general rational maps. In this paper, we prove the conjecture for a family of rational maps obtained by gluing two PCF polynomials along the boundaries of their finite superattracting basins. Adapting the idea of [17], we show that a suitably defined intersection number with a finite family of separating arcs eventually decays under pullback, yielding a finite collection of homotopy classes that attracts all non-peripheral curves under iteration.
format Preprint
id arxiv_https___arxiv_org_abs_2605_00633
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle On the Global Curve Attractor for polynomial gluing
Wu, Panjing
Dynamical Systems
Pilgrim's Finite Global Attractor Conjecture has been verified for polynomials [1], but remains open for general rational maps. In this paper, we prove the conjecture for a family of rational maps obtained by gluing two PCF polynomials along the boundaries of their finite superattracting basins. Adapting the idea of [17], we show that a suitably defined intersection number with a finite family of separating arcs eventually decays under pullback, yielding a finite collection of homotopy classes that attracts all non-peripheral curves under iteration.
title On the Global Curve Attractor for polynomial gluing
topic Dynamical Systems
url https://arxiv.org/abs/2605.00633