A Variational Approach to the Yamabe Problem: Conformal Transformations and Scalar Curvature on Compact Riemannian Manifolds

Fuente: arXiv
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Main Author: Chen, Aoran
Format: Preprint
Published: 2023
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author Chen, Aoran
author_facet Chen, Aoran
contents We start by taking the analytical approach to discuss how the minimizer of Yamabe functional provides constant scalar curvature and its relationship with the Sobolev Space $W^{1,2}.$ Then, after demonstrating the importance of the sphere $S^n$, with stereographic projection and dilation, we show that the minimizer of Yamabe functional on standard sphere is obtained from a standard round metric $\bar{g}$ by a conformal diffeomorphism, thus giving us the constraint $λ(M) < λ(S^n),$ which leads us to the final theorem that the Yamabe problem is solvable when $λ(M) < λ(S^n).$ For the proof of this theorem, we adopt the approach of Concentration-Compactness.
format Preprint
id arxiv_https___arxiv_org_abs_2309_02397
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle A Variational Approach to the Yamabe Problem: Conformal Transformations and Scalar Curvature on Compact Riemannian Manifolds
Chen, Aoran
Differential Geometry
Analysis of PDEs
53
We start by taking the analytical approach to discuss how the minimizer of Yamabe functional provides constant scalar curvature and its relationship with the Sobolev Space $W^{1,2}.$ Then, after demonstrating the importance of the sphere $S^n$, with stereographic projection and dilation, we show that the minimizer of Yamabe functional on standard sphere is obtained from a standard round metric $\bar{g}$ by a conformal diffeomorphism, thus giving us the constraint $λ(M) < λ(S^n),$ which leads us to the final theorem that the Yamabe problem is solvable when $λ(M) < λ(S^n).$ For the proof of this theorem, we adopt the approach of Concentration-Compactness.
title A Variational Approach to the Yamabe Problem: Conformal Transformations and Scalar Curvature on Compact Riemannian Manifolds
topic Differential Geometry
Analysis of PDEs
53
url https://arxiv.org/abs/2309.02397