pith. sign in

arxiv: 1104.2141 · v3 · pith:B52ZM5ZGnew · submitted 2011-04-12 · 🧮 math.CV · math.FA

Divided Differences & Restriction Operator on Paley-Wiener Spaces PW_(tau)^(p) for N-Carleson Sequences

classification 🧮 math.CV math.FA
keywords lambdacarlesonnecessarysequencesconditionsdifferencesdividedisomorphism
0
0 comments X
read the original abstract

For a sequence of complex numbers $\Lambda$ we consider the restriction operator $R_{\Lambda}$ defined on Paley-Wiener spaces $PW_{\tau}^{p}$ ($1<p<\infty$). Lyubarskii and Seip gave necessary and sufficient conditions on $\Lambda$ for $R_{\Lambda}$ to be an isomorphism between $PW_{\tau}^{p}$ and a certain weighted $l^{p}$ space. The Carleson condition appears to be necessary. We extend their result to $N-$Carleson sequences (finite unions of $N$ disjoint Carleson sequences). More precisely, we give necessary and sufficient conditions for $R_{\Lambda}$ to be an isomorphism between $PW_{\tau}^{p}$ and an appropriate sequence space involving divided differences.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.