English

A short proof of the elliptical range theorem

Spectral Theory 2022-11-24 v2 Rings and Algebras

Abstract

A short proof of the elliptical range theorem concerning the numerical range of 2×22\times2 complex matrices is given.

Keywords

Cite

@article{arxiv.2208.06248,
  title  = {A short proof of the elliptical range theorem},
  author = {Gyula Lakos},
  journal= {arXiv preprint arXiv:2208.06248},
  year   = {2022}
}

Comments

2 pages

R2 v1 2026-06-25T01:39:55.675Z