Year: 2012
Type: article
Abstract: In this paper, we deal with a critical point metric of the total scalar curvature on a compact manifold $M$ . We prove that if the critical point metric has parallel Ricci tensor, then the manifold is isometric to a standard sphere. Moreover, we show that if an $n$ -dimensional Riemannian manifold is a warped product, or has harmonic curvature with non-parallel Ricci tensor, then it cannot be a critical point metric.
Authors: Jeong-Wook Chang, Seung-Su Hwang, Gab-Jin Yun
Institution: Myongji University
Language: English
Subfield: Applied Mathematics
Field: Mathematics
Domain: Physical Sciences
Open Access status: bronze
Award: G2720221105
OpenAlex ID: W2017266758
