Applied Math Seminar
Spring Quarter 2003
3:15 p.m.
Sloan Mathematics Corner
Building 380, Room 380-C


Friday, May 2, 2003


Suzanne Lenhart
University of Tennessee and Oak Ridge National Laboratory

Optimal Control of an Integro-difference Population Model


Abstract:

Integro-difference equations are models that are discrete in time and continous in space. These equations model populations with discrete non-overlapping generations with separate growth and dispersal stages. The dispersal is modeled by an integral of the population density (after the growth) against a kernel. Optimal control of such a hybrid equation is a new area and involves a combination of the techniques from the discrete version of Pontryagin's Maximum Principle and from control of partial differential equations. Analysis and characterization of an optimal harvesting control will be given using an adjoint equation. Numerical algorithms and illustrations will be included for a variety of dispersal kernels and growth functions.

Seminar Main Page