English

Off-Diagonal Two Weight Bumps for Fractional Sparse Operators

Classical Analysis and ODEs 2021-05-26 v2

Abstract

In this paper, we continue some recent work on two weight boundedness of sparse operators to the "off-diagonal" setting. We use the new "entropy bumps" introduced in by Treil-Volberg ([21]) and improved by Lacey-Spencer ([9]) and the "direct comparison bumps" introduced by Rahm-Spencer ([19]) and improved by Lerner ([10]). Our results are "sharp" in the sense that they are sharp in various particular cases. A feature is that given the current machinery, the proofs are almost trivial.

Keywords

Cite

@article{arxiv.2101.02123,
  title  = {Off-Diagonal Two Weight Bumps for Fractional Sparse Operators},
  author = {Rob Rahm},
  journal= {arXiv preprint arXiv:2101.02123},
  year   = {2021}
}

Comments

References added; mistakes/typos corrected

R2 v1 2026-06-23T21:50:45.607Z