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Generic uniqueness of expanders with vanishing relative entropy (1812.08504v2)
Published 20 Dec 2018 in math.DG and math.AP
Abstract: We define a relative entropy for two expanding solutions to mean curvature flow of hypersurfaces, asymptotic to the same cone at infinity. Adapting work of White and using recent results of Bernstein and Bernstein-Wang, we show that expanders with vanishing relative entropy are unique in a generic sense. This also implies that generically locally entropy minimising expanders are unique.
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