DEPARTMENT OF MATHEMATICAL SCIENCES

APPLIED AND COMPUTATIONAL MATHEMATICS SEMINAR

**Speaker:**Steven Wise, University of Tennessee

**Title: ***
A Mixed Discontinuous Galerkin, Convex Splitting Scheme for a Modified
Cahn-Hilliard Equation
*

**Abstract:**
I will define and analyze a mixed DG, convex splitting scheme for a
modified Cahn-Hilliard equation. The equation represents a diffuse
interface model for phase separation in diblock coploymer blends and
permits rather exotic solutions compared to the classical Cahn-Hilliard
equation, including solutions like those from the phase field crystal
model. The talk will cover theoretical energy stability and convergence
results and also the practical, efficient solution of the algebraic
equations via an adaptive nonlinear multigrid method. This is joint work
with A. Aristotelous (SAMSI) and O. Karakashian (UTK).

**Time:** Monday, September 17, 2012, 4:30-5:30 p.m.

**Place:** The Hub (formerly Student Union II), Meeting Room 5

Department of Mathematical Sciences

George Mason University

4400 University Drive, MS 3F2

Fairfax, VA 22030-4444

http://math.gmu.edu/

Tel. 703-993-1460, Fax. 703-993-1491