Asymptotics of ACH-Einstein metrics
Differential Geometry
2011-03-01 v2 Complex Variables
Abstract
We study the boundary asymptotics of ACH metrics which are formally Einstein. In terms of the partially integrable almost CR structure induced on the boundary at infinity, existence and uniqueness of such formal asymptotic expansions are studied. It is shown that there always exist formal solutions to the Einstein equation if we allow logarithmic terms, and that a local CR-invariant tensor arises as the obstruction to the existence of a log-free solution. Some properties of this new CR invariant, the CR obstruction tensor, are discussed.
Cite
@article{arxiv.1009.4163,
title = {Asymptotics of ACH-Einstein metrics},
author = {Yoshihiko Matsumoto},
journal= {arXiv preprint arXiv:1009.4163},
year = {2011}
}
Comments
44 pages; introduction rewritten, proof of Proposition 1.4 fixed, minor modifications added