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Sobolev spaces in metric measure spaces: reflexivity and lower semicontinuity of slope

机译:度量标准测量空间中的SoboLev空间:斜率的反射性和较低的半连续性

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In this paper we make a survey of some recent developments of the theory of Sobolev spaces W~(1,q)(X,d,m), 1 < q < ∞, in metric measure spaces (X, d,m). In the final part of the paper we provide a new proof of the reflexivity of the Sobolev space based on Γ-convergence; this result extends Cheeger's work because no Poincaré inequality is needed and the measure-theoretic doubling property is weakened to the metric doubling property of the support of m. We also discuss the lower semicontinuity of the slope of Lipschitz functions and some open problems.
机译:在本文中,我们对SoboLev Spaces的理论的一些最新进展进行了调查,从而在度量标准度量空间中(x,d,m)中的一个(1,q)(x,d,m),1

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