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Partial retractions for weighted Hardy spaces

  • Sergei Kisliakov*
  • , Quanhua Xu
  • *Corresponding author for this work
  • St. Petersburg Branch
  • UMR de Mathématiques

Research output: Contribution to journalArticlepeer-review

Abstract

Let 1 ≤ p ≤ ∞ and let w0, w1 be two weights on the unit circle such that log(w0w-11) ∈ BMO. We prove that the couple (Hp(w0), Hp(w1)) of weighted Hardy spaces is a partial retract of (Lp(w0), Lp(w1)). This completes previous work of the authors. More generally, we have a similar result for finite families of weighted Hardy spaces. We include some applications to interpolation.

Original languageEnglish
Pages (from-to)251-264
Number of pages14
JournalStudia Mathematica
Volume138
Issue number3
StatePublished - 2000
Externally publishedYes

Keywords

  • BMO
  • Interpolation
  • Partial retraction
  • Weighted Hardy space

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