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Evolution of hypersurfaces in (n+1)-dimensional light-cone

2026/07/29 by Xinjie Jiang, Shengliang Pan, Yun Yang
Mathematics · #math.DG

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arxiv created 2026/07/29 · arxiv updated 2026/07/30

Abstract

In this paper, we investigate the evolutionary processes of hypersurfaces within half of the (n+1)-dimensional light-cone. Depending on the evolutionary processes, our focus extends to exploring variational problems associated with a smooth function f(S1,⋯,Sn), where each Sr denotes the r-th elementary symmetric polynomial, defined as the sum of all possible products of r distinct principal curvatures. We present several fundamental properties related to these variational problems. Furthermore, we examine a curvature-type flow defined locally within the light-cone, establishing its perpetual existence and smooth convergence to a circle whose length is preserved and equal to that of the initial curve.

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