Chin-Yu HsiaoInstitute of Mathematics, Academia Sinica, TaiwanJeffrey CaseDepartment of Mathematics, The Pennsylvania State UniversityPaul YangDepartment of Mathematics, Princeton University
Differential Geometrymathscidoc:1803.10003
We construct contact forms with constant $Q^\prime$-curvature on compact three-dimensional CR manifolds which admit a pseudo-Einstein contact form and satisfy some natural positivity conditions. These contact forms are obtained by minimizing the CR analogue of the $II$-functional from conformal geometry. Two crucial steps are to show that the $P^\prime$-operator can be regarded as an elliptic pseudodifferential operator and to compute the leading order terms of the asymptotic expansion of the Green function for $\sqrt{P^\prime}$.
CR geometry, ${Q}^\prime$-curvature in CR geometry
@inproceedings{chin-yuextremal,
title={Extremal metrics for the ${Q}^\prime$-curvature in three dimensions},
author={Chin-Yu Hsiao, Jeffrey Case, and Paul Yang},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20180330000824722601002},
}
Chin-Yu Hsiao, Jeffrey Case, and Paul Yang. Extremal metrics for the ${Q}^\prime$-curvature in three dimensions. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20180330000824722601002.