On automorphism groups of fiber bundles
arXiv:1012.4606
Abstract
We obtain analogues of classical results on automorphism groups of holomorphic fiber bundles, in the setting of group schemes. Also, we establish a lifting property of the connected automorphism group, for torsors under abelian varieties. These results will be applied to the study of homogeneous bundles over abelian varieties.
Substantial revision of Section 3, following the very helpful comments of a referee