Year: 2024
Type: preprint
Abstract: Let a discrete group $Γ$ act by isometries on a metric space $X$. We show that actions on geodesic hyperbolic spaces satisfy a branch Cotlar property. Under a finite low-orbit-frequency hypothesis, this yields uniform $L^4$-unconditionality for branch subspaces associated with sufficiently separated subsets; when the union of these branches has finite complement, the corresponding signed projections are uniformly bounded on $L^p(\widehatΓ)$ for every $1
Source: arXiv (Cornell University)
Author: Mei, Tao
Language: English
Subfield: Applied Mathematics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4403012019