Conformal metrics on R^{2m} with constant Q-curvature and large volume

Details Conformal metrics on R^{2m} with constant Q-curvature and large volume Conformal metrics on R^{2m} with constant Q-curvature and large volume

2012-02-06

arxiv.org/abs/1202.1222v1

Mathematics

Differential Geometry

17 pages

Scientific paper

We study conformal metrics on R^{2m} with constant Q-curvature and finite volume. When m=3 we show that there exists V* such that for any V\in [V*,\infty) there is a conformal metric g on R^{6} with Q_g = Q-curvature of S^6, and vol(g)=V. This is in sharp contrast with the four-dimensional case, treated by C-S. Lin. We also prove that when $m$ is odd and greater than 1, there is a constant V_m>\vol (S^{2m}) such that for every V\in (0,V_m] there is a conformal metric g on R^{2m} with Q_g = Q-curvature of S^{2m}, vol(g)=V. This extends a result of A. Chang and W-X. Chen. When m is even we prove a similar result for conformal metrics of negative Q-curvature.

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