Advanced Nonlinear Studies (May 2024)

Sobolev extension in a simple case

  • Drake Marjorie,
  • Fefferman Charles,
  • Ren Kevin,
  • Skorobogatova Anna

DOI
https://doi.org/10.1515/ans-2023-0132
Journal volume & issue
Vol. 25, no. 2
pp. 260 – 278

Abstract

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In this paper, we establish the existence of a bounded, linear extension operator T:L2,p(E)→L2,p(R2) $T :{L}^{2,p}\left(E\right)\to {L}^{2,p}\left({\mathbb{R}}^{2}\right)$ when 1 < p < 2 and E is a finite subset of R2 ${\mathbb{R}}^{2}$ contained in a line.

Keywords