Approximation of the Scattering Amplitude using Nonsymmetric Saddle Point Matrices

Amber S. Robertson, James V. Lambers

In this paper we examine iterative methods for solving the forward ($A\mathbf{x}=\mathbf{b}$) and adjoint ($A^T\mathbf{y}=\mathbf{g}$) systems of linear equations used to approximate the sca…