Explicit Decomposition Theorem for special Schubert varieties
Algebraic Geometry
2019-10-28 v2 Representation Theory
Abstract
We give a short and self-contained proof of the Decomposition Theorem for the non-small resolution of a Special Schubert variety. We also provide an explicit description of the perverse cohomology sheaves. As a by-product of our approach, we obtain a simple proof of the Relative Hard Lefschetz Theorem.
Cite
@article{arxiv.1809.08012,
title = {Explicit Decomposition Theorem for special Schubert varieties},
author = {Davide Franco},
journal= {arXiv preprint arXiv:1809.08012},
year = {2019}
}
Comments
This is an extensively revised version of my previous paper, taking care of the referee's comments