On exceptional rigid local systems
Algebraic Geometry
2007-05-23 v1
Abstract
We prove new instances of Simpson's rigidity conjecture which states that quasi-unipotent rigid local systems should be motivic. We construct new relative motives over the fourfold punctured Riemann sphere which give rise to -rigid local systems which are not rigid in the group
Cite
@article{arxiv.math/0609142,
title = {On exceptional rigid local systems},
author = {Michael Dettweiler and Stefan Reiter},
journal= {arXiv preprint arXiv:math/0609142},
year = {2007}
}