Rigid irregular connections on P^1
Algebraic Geometry
2014-01-14 v2
Abstract
N.Katz's middle convolution algorithm provides a description of rigid connections on the projective line with regular singularities. We extend the algorithm by adding the Fourier transform to it. The extended algorithm provides a description of rigid connections with arbitrary singularities.
Cite
@article{arxiv.0808.0742,
title = {Rigid irregular connections on P^1},
author = {D. Arinkin},
journal= {arXiv preprint arXiv:0808.0742},
year = {2014}
}
Comments
17 pages. Minor corrections, final version. To appear in Compositio Mathematica