On partial isometries with circular numerical range
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Publication:6377892
DOI10.1515/CONOP-2020-0121arXiv2109.08481MaRDI QIDQ6377892
Ilya M. Spitkovskij, Elias Wegert
Publication date: 17 September 2021
Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60) Numerical range, numerical radius (47A12) Geometric constructions in real or complex geometry (51M15) Elliptic functions and integrals (33E05) Blaschke products (30J10)
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