1996/02/15 by Siye Wu, Wu, Siye
Mathematics · #14M25 #32M05 #53C55 (Primary) 32C35 #58F05 (Secondary) #Algebraic Geometry (math.AG) #Differential Geometry (math.DG) #FOS: Mathematics #alg-geom #dg-ga #math.AG #math.DG #msc:14M25 #msc:32C35 #msc:32M05 #msc:53C55 #msc:58F05
paper · pdf · doi:10.48550/arxiv.dg-ga/9602008
plain LaTeX, 22 pages, 5 figures, some errors corrected
arxiv created 1998/06/22 · arxiv updated 2009/11/30
We extend the equivariant holomorphic Morse inequalities of circle actions to cases with torus and non-Abelian group actions on holomorphic vector bundles over Kahler manifolds and show the necessity of the Kahler condition. For torus actions, there is a set of inequalities for each choice of action chambers specifying directions in the Lie algebra of the torus. We apply the results to invariant line bundles over toric manifolds. If the group is non-Abelian, there is in addition an action of the Weyl group on the fixed-point set of its maximal torus. The sum over the fixed points can be rearranged into sums over the Weyl group (having incorporated the character of the isotropy representation on the fiber) and over its orbits.