English

Interpolation and extrapolation of strictly singular operators between $L_p$ spaces

Functional Analysis 2017-06-28 v1

Abstract

We study the interpolation and extrapolation properties of strictly singular operators between different LpL_p spaces. To this end, the structure of strictly singular non-compact operators between LpLqL_p-L_q spaces is analyzed. Among other things, we clarify the relation between strict singularity and the LL-characteristic set of an operator. In particular, Krasnoselskii's interpolation theorem for compact operators is extended to the class of strictly singular operators.

Keywords

Cite

@article{arxiv.1706.08682,
  title  = {Interpolation and extrapolation of strictly singular operators between $L_p$ spaces},
  author = {Francisco L. Hernández and Evgeny M. Semenov and Pedro Tradacete},
  journal= {arXiv preprint arXiv:1706.08682},
  year   = {2017}
}

Comments

20 pages. To appear in Adv. Math

R2 v1 2026-06-22T20:30:35.685Z