arXiv 0806.02842008-06math.OAmath.FA

Representations of logmodular algebras

Vern I. Paulsen, Mrinal Raghupathi

备注：: 14 pages, to appear in Trans. Amer. Math. Soc.

英文摘要：

We study the question of whether or not contractive representations of logmodular algebras are completely contractive. We prove that a 2-contractive representation of a logmodular algebra extends to a positive map on the enveloping C*-algebra, which we show generalizes a result of Foias and Suciu on uniform logmodular algebras. Our proof uses non-commutative operator space generalizations of classical results on 2-summing maps and semispectral measures. We establish some matrix factorization results for uniform logmodular algebras

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