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### Upper bound on coarsening rate

**Colloquium**

Speaker: | Xiaodong Yan, Courant Institute |

Location: | 693 Kerr |

Start time: | Mon, Jan 13 2003, 4:10PM |

Late time coarsening has been observed in epitaxial growth models. Results from experiments and numerics on isotropic epitaxial growth models suggest that the characteristic length scale $L(t)$ grows as $t^{\frac{1}{3}}$ at late times. We prove a weak one sided version of this statement. Our analysis follows a strategy introduce by Kohn and Otto in their study of phase transition.

3:45 Refreshments will be served before the talk in 551 Kerr Hall