Regularization of an inverse problem
= Regularization of an inverse problem
{wiki=Regularization_(mathematics)}
A regularization is a family of bounded approximate inverses $R_\alpha$ together with a parameter rule $\alpha(\delta)$ such that $R_{\alpha(\delta)}f^\delta\to A^\dagger f$ whenever $\lVert f^\delta-f\rVert\leq\delta$ and $f$ lies in the domain of the Moore--Penrose inverse.