We determine all δ-biderivations for the Witt algebra, the Virasoro algebra, the W-algebras W(a,b) and their universal central extensions W(a,b), and then give some applications.
@article{arxiv.2603.06005,
title = {$\delta$-biderivations of Virasoro related algebras},
author = {Chengkang Xu},
journal= {arXiv preprint arXiv:2603.06005},
year = {2026}
}