English

An extension of James's compactness theorem

Functional Analysis 2014-07-15 v1

Abstract

Let X and Y be Banach spaces and F a subset of B_{Y^*}. Endow Y with the topology \tau_F of pointwise convergence on F. Let T: X^* \to Y be a bounded linear operator which is (w^*, \tau_F) continuous. Assume that every vector in the range of T attains its norm at an element of F. Then it is proved that T is (w^*,w) continuous.

Keywords

Cite

@article{arxiv.1407.3655,
  title  = {An extension of James's compactness theorem},
  author = {Ioannis Gasparis},
  journal= {arXiv preprint arXiv:1407.3655},
  year   = {2014}
}

Comments

15 pages

R2 v1 2026-06-22T05:03:29.728Z