2 papers
math.FA2023
Linear preservers on idempotents of Fourier algebras
Ying-Fen Lin, Shiho Oi
In this article, we give a representation of bounded complex linear operators which preserve idempotent elements on the Fourier algebra of a locally compact group. When such an ope…
math.FA2016
A retract theorem for nilpotent Lie groups
Ying-Fen Lin, Jean Ludwig, Carine Molitor-Braun
Let $G= \exp(\g)$ be a connected, simply connected nilpotent Lie group. We show that for every -invariant smooth sub-manifold of , there exists an open relatively compa…