If the continuous function u satisfies the inequality $\mathrm{u}(\mathrm{x},\mathrm{y})\le \mathrm{f}(\mathrm{x},\mathrm{y})+{\int }_{0}^{\mathrm{x}}{\int }_{0 ...
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 ...
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