English

Type and cotype of operator spaces

Functional Analysis 2007-05-23 v3 Operator Algebras

Abstract

We consider two operator space versions of type and cotype, namely SpS_p-type, SqS_q-cotype and type (p,H)(p,H), cotype (q,H)(q,H) for a homogeneous Hilbertian operator space HH and 1p2q1\leq p \leq 2 \leq q\leq \infty, generalizing "OHOH-cotype 2" of G. Pisier. We compute type and cotype of some Hilbertian operator spaces and LpL_p spaces, and we investigate the relationship between a homogeneous Hilbertian space HH and operator spaces with cotype (2,H)(2,H). As applications we consider operator space versions of generalized little Grothendieck's theorem and Maurey's extension theorem in terms of these new notions.

Keywords

Cite

@article{arxiv.math/0502302,
  title  = {Type and cotype of operator spaces},
  author = {Hun Hee Lee},
  journal= {arXiv preprint arXiv:math/0502302},
  year   = {2007}
}

Comments

23 pages, The whole paper is rewritten, and the title has been changed