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Stability of Hardy-Littlewood-Sobolev inequalities with explicit lower bounds

In this paper, we establish the stability for the Hardy-Littlewood-Sobolev (HLS) inequalities with explicit lower bounds. By establishing the relation between the stability of HLS inequalities and the stability of fractional Sobolev inequalities, we also give the stability of the fractional Sobolev inequalities with the lower bounds. This extends the stability of Sobolev inequalities with the explicit lower bounds established by Dolbeault, Esteban, Figalli, Frank and Loss in [16] to the fractional order case. Our proofs are based on the competing symmetries, the continuous Steiner symmetrization inequality for the HLS integral and the dual stability theory.

preprint2023arXivOpen access
Lu ChenGuozhen LuHanli Tang
math.AP
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Open access3 authors1 topic
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Lu ChenGuozhen LuHanli Tang

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