Author ORCID Identifier

0009-0008-2791-4167

Document Type

Dissertation

Date of Award

8-31-2026

Degree Name

Doctor of Philosophy in Mathematical Sciences - (Ph.D.)

Department

Mathematical Sciences

First Advisor

Yassine Boubendir

Second Advisor

Eliza Zoi-Heleni Michalopoulou

Third Advisor

Travis Askham

Fourth Advisor

Tien N. Nguyen

Fifth Advisor

Ali Abdi

Abstract

A stable and numerically efficient boundary integral method formulation of the elasto-acoustic problem is presented, based on Fourier analysis. The method generalizes well to multiple scattering. The Frechet derivative of the elasto-acoustic problem with respect to shape perturbations is derived, and geometric flow theory is used to design stable numerical methods for the simulation of moving boundaries. The shape derivative is used to define a regularized Gauss-Newton algorithm for shape fitting of elasto-acoustic scatterers.

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