Damon M. Hay

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math.FA2008

Non-Commutative Partial Matrix Convexity

Damon M. Hay, J. William Helton, Adrian Lim +1

Let $p$ be a polynomial in the non-commuting variables $(a, x) = (a_{1}, ..., a_{g_{a}}, x_{1}, ..., x_{g_{x}})$ . If $p$ is convex in the variables $x$ , then $p$ has degree two in $x$ and moreover…

math.FA2002

Complete isometries - an illustration of noncommutative functional analysis

David P. Blecher, Damon M. Hay

This article, addressed to a general audience of functional analysts, is intended to be an illustration of a few basic principles from `noncommutative functional analysis', more sp…