The operator convex functions of two variables are characterized in terms of a non-commutative generalization of Jensen's inequality. Journal Information This monthly journal, begun in 1950, is ...
THIS is emphatically a text-book, deductive in method and Euclidean in arrangement; as such, it has the defects of its qualities, but its merits are undeniable. In this volume the author deals with ...
This is a preview. Log in through your library . Journal Information PNAS is the world's most-cited multidisciplinary scientific serial. It publishes high-impact research reports, commentaries, ...
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