## Colloquium Abstract:

"On some simpler models related to the DLA"

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Friday, September 22nd at 3:30 p.m.

MATH 104

### Dr. N.G. Makarov

Department of Mathematics,
Caltech, Pasadena, CA
We will consider some aggregation processes in the complex plane
(random snowflakes, the non-branching DLA process) such that the
growth probabilities depend on the distribution of harmonic
measure. These models are simpler than the original, physically
important ``Diffusion Limited Aggregation" (DLA) process. They allow
some rigorous statements and explain certain features of the DLA.

* Coffee, tea and cookies will be served in Math Lounge (Annex) Room 1115
at 3:15 p.m.