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Sobolev Inequalities in Manifolds With Nonnegative Intermediate Ricci Curvature

  • Hui Ma,
  • Jing Wu

摘要

We prove Michael-Simon type Sobolev inequalities for n-dimensional submanifolds in \((n+m)\) ( n + m ) -dimensional Riemannian manifolds with nonnegative kth intermediate Ricci curvature by using the Alexandrov-Bakelman-Pucci method. Here \(k=\min (n-1,m-1)\) k = min ( n - 1 , m - 1 ) . These inequalities extend Brendle’s Michael-Simon type Sobolev inequalities on Riemannian manifolds with nonnegative sectional curvature Brendle (Commun. Pure Appl. Math. 76(9), 2192–2218 (2022)) and Dong-Lin-Lu’s Michael-Simon type Sobolev inequalities on Riemannian manifolds with asymptotically nonnegative sectional curvature Dong et al. (Sobolev inequalities in manifolds with asymptotically nonnegative curvature, 2022) to the k-Ricci curvature setting. In particular, a simple application of these inequalities gives rise to some isoperimetric inequalities for minimal submanifolds in Riemannian manifolds.