The Haar System in Triebel-Lizorkin Spaces: Endpoint Results

Gustavo Garrigós, Andreas Seeger, Tino Ullrich

We characterize the Schauder and unconditional basis properties for the Haar system in the Triebel-Lizorkin spaces $F_{p,q}^s({\mathbb{R}}^d)$, at the endpoint cases $s=1$, $s=d/p-d$ and…