English

Strictly Singular Uniform $\lambda-$Adjustment in Banach Spaces

Functional Analysis 2009-02-19 v1

Abstract

Based on the recently introduced uniform λ\lambda-adjustment for closed subspaces of Banach spaces we extend the concept of the strictly singular and finitely strictly singular operators to the sequences of closed subspaces and operators in Banach spaces and prove theorems about lower semi--Fredholm stability. We also state some new open questions related to strict singularity and the geometry of Banach spaces.

Keywords

Cite

@article{arxiv.0902.3045,
  title  = {Strictly Singular Uniform $\lambda-$Adjustment in Banach Spaces},
  author = {Boris Burshteyn},
  journal= {arXiv preprint arXiv:0902.3045},
  year   = {2009}
}

Comments

23 pages

R2 v1 2026-06-21T12:12:45.640Z