Displaying similar documents to “The algebraic Bethe Ansatz and vacuum vectors.”

Quantum permutations, Hadamard matrices, and the search for matrix models

Teodor Banica (2012)

Banach Center Publications

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This is a presentation of recent work on quantum permutation groups, complex Hadamard matrices, and the connections between them. A long list of problems is included. We include as well some conjectural statements about matrix models.

The minimum, diagonal element of a positive matrix

M. Smyth, T. West (1998)

Studia Mathematica

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Properties of the minimum diagonal element of a positive matrix are exploited to obtain new bounds on the eigenvalues thus exhibiting a spectral bias along the positive real axis familiar in Perron-Frobenius theory.