English

Krein C*-categories

Operator Algebras 2011-12-30 v1 Category Theory

Abstract

C*-categories are essentially norm-closed *-categories of bounded linear operators between Hilbert spaces. The purpose of this work is to identify suitable axioms defining Krein C*-categories, i.e. those categories that play the role of C*-categories whenever Hilbert spaces are replaced by more general indefinite inner product Krein spaces, and provide some basic examples. Finally we provide a Gel'fand-Naimark representation theorem for Krein C*-algebras and Krein C*-categories.

Keywords

Cite

@article{arxiv.1112.5996,
  title  = {Krein C*-categories},
  author = {Paolo Bertozzini and Kasemsun Rutamorn},
  journal= {arXiv preprint arXiv:1112.5996},
  year   = {2011}
}

Comments

10 pages, AMS-LaTeX2e

R2 v1 2026-06-21T19:57:24.253Z