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arxiv: 1605.08603 · v2 · pith:7SGOJNNYnew · submitted 2016-05-27 · 🧮 math.CA

Behaviour of the Brascamp--Lieb constant

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keywords constantbehaviourbrascamp--liebgeneralanalysisbestboundcontinuous
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Recent progress in multilinear harmonic analysis naturally raises questions about the local behaviour of the best constant (or bound) in the general Brascamp--Lieb inequality as a function of the underlying linear transformations. In this paper we prove that this constant is continuous, but is not in general differentiable.

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