English

Gateaux derivative of matrix norms in operator spaces and operator systems

Operator Algebras 2025-10-07 v1 Functional Analysis

Abstract

We find expressions for the Gateaux derivative of the matrix norms in operator spaces, and operator systems. Some applications of the results to quantum probability measures, states on C^*-algebras, and Birkhoff-James orthogonality are also presented.

Keywords

Cite

@article{arxiv.2510.03864,
  title  = {Gateaux derivative of matrix norms in operator spaces and operator systems},
  author = {Sushil Singla},
  journal= {arXiv preprint arXiv:2510.03864},
  year   = {2025}
}