2 papers
math.NA2025
Deflation Techniques for Finding Multiple Local Minima of a Nonlinear Least Squares Problem
Alban Bloor Riley, Marcus Webb, Michael L Baker
In this paper we generalize the technique of deflation to define two new methods to systematically find many local minima of a nonlinear least squares problem. The methods are base…
math.NA2025
A Riemannian Gradient Descent Method for the Least Squares Inverse Eigenvalue Problem
Alban Bloor Riley, Marcus Webb, Michael L. Baker
We address an algorithm for the least squares fitting of a subset of the eigenvalues of an unknown Hermitian matrix lying an an affine subspace, called the Lift and Projection (LP)…