Fejér-Riesz factorization in the QRC-subalgebra and circularity of the quaternionic numerical range
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Publication:6611864
DOI10.1007/s43036-024-00330-zMaRDI QIDQ6611864
M. van Straaten, Hugo J. Woerdeman, Alma van der Merwe
Publication date: 27 September 2024
Published in: Advances in Operator Theory (Search for Journal in Brave)
Factorization of matrices (15A23) Matrices over special rings (quaternions, finite fields, etc.) (15B33) Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60) Numerical range, numerical radius (47A12) Algebraic systems of matrices (15A30) Quadratic and bilinear forms, inner products (15A63)
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