activity
20082026
most citedDynamics of generic 1-parameter perturbations of a vector field with a singular point of codimension k

3 citations · 6 across the 12 of their papers we have counts for

collaborators

14 papers

math.DS2026

Biggest bounded type Siegel disks of monic polynomials include those that stick to all critical points

Xavier Buff, Arnaud Chéritat, Pascale Roesch

We prove that for all degree and all bounded type irrational , in the space of monic polynomials having a period Siegel disk of rotation number , the maximu…

math.DS2025

Some invariant classes for parabolic renormalization in the multicritical case

Arnaud Chéritat, Pascale Roesch

Parabolic renormalization associates to a holomorphic map f with a parabolic fixed point another holomorphic map with a parabolic fixed point. This procedure is essential for under…

math.DS2024

Cubic Siegel polynomials and the bifurcation measure

Matthieu Astorg, Davoud Cheraghi, Arnaud Chéritat

We prove that cubic polynomial maps with a fixed Siegel disk and a critical orbit eventually landing inside that Siegel disk lie in the support of the bifurcation measure. This ans…

math.CO2024

Observations on the hex clusters of the Spectre tilings

Arnaud Chéritat

Decorating the Spectre tile with hexagons reveals triangular hexagonal clusters whose structure we study. In the process we reprove that the Spectre tilings exist and are uniquely…

math.CV2022

Similarity surfaces, connections, and the measurable Riemann mapping theorem

Arnaud Chéritat, Guillaume Tahar

This article studies a particular process that approximates solutions of the Beltrami equation (straightening of ellipse fields, a.k.a. measurable Riemann mapping theorem) on $\mat…

math.DS2022

Horn maps of holomorphic functions locally pseudo-conjugate on their parabolic basins

Arnaud Chéritat, Dimitri Le Meur

The lifted horn map of a holomorphic function with a simple parabolic point is well known to be a complete local conjugacy invariant; this is a classical result proved independentl…