2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/124896Let $α$ be an approximately inner flow on a $C^*$ algebra $A$ with generator $δ$ and let $δ_n$ denote the bounded generators of the approximating flows $α^{(n)}$. We analyze the structure of the set \cd=\{x\in D(δ): \lim_{n\to\infty}δ_n(x)=δ(x)\} of pointwise convergence of the generators. In particular we examine the relationship of $\cd$ and various cores related to spectral subspaces.17 pagesOperator AlgebrasFunctional Analysis46L57Approximately inner derivationstext