Analytic deformations of group commuting squares and complex Hadamard matrices

DOI10.1016/j.jfa.2016.12.014zbMath1360.15035OpenAlexW2562201015MaRDI QIDQ517108

Yong-Cai Geng, Sumit K. Garg

Publication date: 16 March 2017

Published in: Journal of Functional Analysis (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.jfa.2016.12.014

zbMATH Keywords

subfactorsdefectfinite groupFourier matrixalgebraic manifoldcomplex Hadamard matricescommuting squares

Mathematics Subject Classification ID

Algebraic systems of matrices (15A30) Boolean and Hadamard matrices (15B34)

Cites Work

• Permutation equivalence classes of Kronecker products of unitary Fourier matrices
• Defect of a unitary matrix
• Classification of subfactors: The reduction to commuting squares
• Index for subfactors
• The defect of generalized Fourier matrices
• All teleportation and dense coding schemes
• Limit points of commuting squares
• A Concise Guide to Complex Hadamard Matrices
• First order deformations of the Fourier matrix
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