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20082026
most citedPoncaré half-space of a C*-algebra

2 citations · 3 across the 8 of their papers we have counts for

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Showing 2011 · math.OAShow all

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math.OA2011

A characterization of Hermitian matrices with variable diagonal and smallest operator norm

Esteban Andruchow, Gabriel Larotonda, Lázaro Recht +1

We describe properties of a Hermitian square matrix M in M_n(C) equivalent to that of having minimal quotient norm in the following sense: ||M|| <= ||M+D|| for all real diagonal ma…