2 papers
math.NA2025
An Iterative Block Matrix Inversion (IBMI) Algorithm for Symmetric Positive Definite Matrices with Applications to Covariance Matrices
Ann Paterson, Jennifer Pestana, Victorita Dolean
Obtaining the inverse of a large symmetric positive definite matrix is a continual challenge across many mathematical disciplines. The comput…
math.NA2024
ELM-FBPINNs: An Efficient Multilevel Random Feature Method
Samuel Anderson, Victorita Dolean, Ben Moseley +1
Domain-decomposed variants of physics-informed neural networks (PINNs) such as finite basis PINNs (FBPINNs) mitigate some of PINNs' issues like slow convergence and spectral bias t…