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A short proof of the complete Crouzeix inequality in dimension three
Abstract
We give a short proof of the complete Crouzeix inequality with sharp constant $2$ for matrices of dimension at most three.
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BibTeX
@misc{looi2026short,
title = {{A short proof of the complete Crouzeix inequality in dimension three}},
author = {Sam Looi},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.01416},
eprint = {2611.01416},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.01416},
}
RIS
TY - UNPB
TI - A short proof of the complete Crouzeix inequality in dimension three
AU - Sam Looi
PY - 2026
DA - 2026/11/01
PB - arXiv
DO - 10.48550/arxiv.2611.01416
UR - https://arxiv.org/abs/2611.01416
AB - We give a short proof of the complete Crouzeix inequality with sharp constant $2$ for matrices of dimension at most three.
ER -