English

Compact subsets of $\Ps(\N)$ with applications to the embedding of symmetric sequence spaces into $C(\alpha)$

Functional Analysis 2009-09-25 v1

Abstract

Let \Ps(N)\Ps(\N) be the set of all finite subsets of N\N, endowed with the product topology. A description of the compact subsets of \Ps(N)\Ps(\N) is given. Two applications of this result to Banach space theory are shown : (1) a characterization of the symmetric sequence spaces which embed into C(\om\om)C(\om^\om), and (2) a characterization, in terms of the Orlicz function MM, of the Orlicz sequence spaces hMh_M which embed into C(K)C(K) for some countable compact Hausdorff space KK.

Keywords

Cite

@article{arxiv.math/9610212,
  title  = {Compact subsets of $\Ps(\N)$ with applications to the embedding of symmetric sequence spaces into $C(\alpha)$},
  author = {Denny H. Leung},
  journal= {arXiv preprint arXiv:math/9610212},
  year   = {2009}
}