Prolongation of regular singular connections on punctured affine line over a Henselian ring
arXiv:2208.00871 · doi:10.1080/00927872.2024.2314109
Abstract
We generalize Deligne's equivalence between the categories of regular-singular connections on the formal punctured disk and on the punctured affine line to the case where the base is a strictly Henselian discrete valuation ring of equal characteristic 0. We also provide a weaker result when the base is higher dimensional.
16 pages, final version, to appear in Communications in Algebra