Minimal Convex Combinations of Three Sequential Laplace-Dirichlet
Eigenvalues
March 20, 2013
3:00pm PGH 646
Abstract
In this talk, the shape optimization problem where the objective function
is a convex combination of three sequential Laplace-Dirichlet eigenvalues
is presented. The domains which minimize the first few single
Laplace-Dirichlet eigenvalues are known analytically and/or have been
studied computationally and it is known that the optimal solution for the
second eigenvalue have multiply connected components. Our computations
based on the level set approach and the gradient descent method reproduce
these previous results and extend these results to sequential problem,
effectively capturing intermediate topology changes. Several properties of
minimizers are studied computationally, including uniqueness, connectivity,
symmetry, and eigenvalue multiplicity. (joint work with Braxton Osting)
Webmaster University of Houston
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Last modified: April 11 2016 - 18:14:43