English

Subdifferential of the joint numerical radius

Functional Analysis 2022-01-11 v1

Abstract

An expression for the subdifferential of the joint numerical radius is obtained. Its applications to the best approximation problems in the joint numerical radius are discussed.

Cite

@article{arxiv.2201.03055,
  title  = {Subdifferential of the joint numerical radius},
  author = {Priyanka Grover and Sushil Singla},
  journal= {arXiv preprint arXiv:2201.03055},
  year   = {2022}
}
R2 v1 2026-06-24T08:44:12.835Z