Scaling Limits of Laplacian Random Growth Models

Planar random growth processes occur widely in the physical world. Examples include diffusion-limited aggregation (DLA) for mineral deposition and the Eden model for biological cell growth. One approach to mathematically modelling such processes is to represent the randomly growing clusters as compositions of conformal mappings. In 1998, Hastings and Levitov proposed one such family of models, which includes versions of the physical processes described above, but there are many natural generalizations. In this talk I will give a survey of the main results and conjectures in this area.

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