Transversely holomorphic branched Cartan geometry
Abstract
Earlier we introduced and studied the concept of holomorphic {\it branched Cartan geometry}. We define here a foliated version of this notion; this is done in terms of Atiyah bundle. We show that any complex compact manifold of algebraic dimension admits, away from a closed analytic subset of positive codimension, a nonsingular holomorphic foliation of complex codimension endowed with a transversely flat branched complex projective geometry (equivalently, a -geometry). We also prove that transversely branched holomorphic Cartan geometries on compact complex projective rationally connected varieties and on compact simply connected Calabi-Yau manifolds are always flat (consequently, they are defined by holomorphic maps into homogeneous spaces).
Cite
@article{arxiv.1803.06472,
title = {Transversely holomorphic branched Cartan geometry},
author = {Indranil Biswas and Sorin Dumitrescu},
journal= {arXiv preprint arXiv:1803.06472},
year = {2018}
}