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Scaling limits of anisotropic Hastings-Levitov clusters.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>6/02/2012
<mark>Journal</mark>Annales de l'Institut Henri Poincaré (B) Probabilités et Statistiques
Issue number1
Number of pages23
Pages (from-to)235-257
Publication StatusPublished
Early online date23/01/12
<mark>Original language</mark>English


We consider a variation of the standard Hastings-Levitov model HL(0), in which growth is anisotropic. Two natural scaling limits are established and we give precise descriptions of the effects of the anisotropy. We show that the limit shapes can be realised as Loewner hulls and that the evolution of harmonic measure on the cluster boundary can be described by the solution to a deterministic ordinary differential equation related to the Loewner equation. We also characterise the stochastic fluctuations around the deterministic limit flow.