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Yunping Jiang

  1. Canonical Thurston Obstructions for Sub-Hyperbolic Semi-Rational Branched Coverings.

    Thu, 01/13/2011 - 16:01 — SomNambul
    Authors: Tao Chen, Yunping Jiang
    Subjects: Dynamical Systems
    Abstract

    We prove that the canonical Thurston obstruction for a sub-hyperbolic
    semi-rational branched covering exists if the branched covering is not
    CLH-equivalent to a rational map.

  2. Linearizability of cubic polynomials at irrationally indifferent fixed points.

    Wed, 10/27/2010 - 15:01 — SomNambul
    Authors: Haifeng Chu, Yunping Jiang
    Subjects: Complex Variables
    Abstract

    We prove that a cubic polynomial at an irrationally indifferent fixed point
    is linearizable if and only if the rotation number of the polynomial at this
    fixed point is a Brjuno number.

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