A fully nonlinear locally constrained anisotropic curvature flow
نویسندگان
چکیده
Given a smooth positive function F∈C∞(Sn) such that the square of its 1-homogeneous extension on Rn+1∖{0} is uniformly convex, Wulff shape WF convex body in Euclidean space Rn+1 with F being support boundary ∂WF. In this paper, we introduce fully nonlinear locally constrained anisotropic curvature flow ∂∂tX=(1−Ek1/kσF)νF,k=2,…,nin space, where Ek denotes normalized kth mean respect to WF, σF and νF outward unit normal evolving hypersurface. We show starting from smooth, closed strictly hypersurface (n≥2), solution exists for all time converges smoothly exponentially scaled shape. A nice feature it improves certain isoperimetric ratio. Therefore by convergence above flow, provide new proof class Alexandrov–Fenchel inequalities mixed volumes domains space.
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ژورنال
عنوان ژورنال: Nonlinear Analysis-theory Methods & Applications
سال: 2022
ISSN: ['1873-5215', '0362-546X']
DOI: https://doi.org/10.1016/j.na.2021.112760