2 papers
math.NA2024
The Fundamental Subspaces of Ensemble Kalman Inversion
Elizabeth Qian, Christopher Beattie
Ensemble Kalman Inversion (EKI) methods are a family of iterative methods for solving weighted least-squares problems, especially those arising in scientific and engineering invers…
math.SP1998
Galerkin Eigenvector Approximations
Christopher Beattie
How close are Galerkin eigenvectors to the best approximation available out of the trial subspace ? Under a variety of conditions the Galerkin method gives an approximate eigenvect…