A Simple Proof of Metric Independence of Sobolev Norms on Compact Manifolds
摘要
In this paper, we provide a fully detailed proof of the well-known fact that the Sobolev norm is independent of the choice of metric when (M, g) is a compact Riemannian manifold. This result is widely used in the theory of Sobolev spaces, but it is typically stated as an elementary fact without a complete proof.