Tim Espin — Neckpinchhttps://neckpinch.com/authors/tim-espin/New arXiv papers by Tim Espin, from Neckpinch Tue, 10 Nov 2026 04:10:28 GMT A Pinching Estimate for Convex Hypersurfaces Evolving Under a Nonhomogeneous Variant of Mean Curvature Flowhttps://neckpinch.com/papers/2001.02546/arxiv:2001.02546Wed, 08 Jan 2020 00:00:00 GMTTim Espin — We study a variant of the mean curvature flow for closed, convex hypersurfaces where the normal velocity is a nonhomogeneous function of the principal curvatures. We show that if the initial hypersurface satisfies a certain pinching condition, then this is preserved and the flow converges to a sphere under rescaling.Mean curvature flowCurvature pinchingHomogeneous spaces