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20222026
most citedPINNs and GaLS: A Priori Error Estimates for Shallow Physics Informed Neural Networks Applied to Elliptic Problems

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math.NA2025

Preconditioned normal equations for solving discretised partial differential equations

Lorenzo Lazzarino, Yuji Nakatsukasa, Umberto Zerbinati

This paper explores preconditioning the normal equation for non-symmetric square linear systems arising from PDE discretization, focusing on methods like CGNE and LSQR. The concept…