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Between the von Neumann inequality and the Crouzeix conjecture - MaRDI portal

Between the von Neumann inequality and the Crouzeix conjecture

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Publication:6322078

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DOI10.1016/j.laa.2020.07.002zbMath1518.47010arXiv1907.06228WikidataQ122965867 ScholiaQ122965867MaRDI QIDQ6322078

Michał Wojtylak, Paweł Pietrzycki, Patryk Pagacz

Publication date: 14 July 2019

Mathematics Subject Classification ID

Linear operator inequalities (47A63) Numerical range, numerical radius (47A12) Spectral sets of linear operators (47A25)

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