Mathematics – Differential Geometry
Scientific paper
2009-11-24
Mathematics
Differential Geometry
11 pages
Scientific paper
In this note, we prove two Kazdan-Warner type identities involving $v^{(2k)}$, the renormalized volume coefficients of a Riemannian manifold $(M^n,g)$, and $G_{2r}$, the so-called Gauss-Bonnet curvature, and a conformal Killing vector field on $(M^n,g)$. In the case when the Riemannian manifold is locally conformally flat, $v^{(2k)}=(-2)^{-k}\sigma_k$, $G_{2r}(g)=\frac{4^r(n-r)!r!}{(n-2r)!}\sigma_r$, and our results reduce to earlier ones established by Viaclovsky and by the second author.
Guo Bin
Han Zheng-Chao
Li Haizhong
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