Arithmetic differential operators on a semistable model of ${\mathbb P}^1$

In this paper we study sheaves of logarithmic arithmetic differential opera- tors on a particular semistable model of the projective line. The main result here is that the first cohomology group of these sheaves contains a non-torsion element. This shows that the model is not D-affine for such differential operators.


Publication Date:
Nov 14 2018
Date Submitted:
Jul 10 2019
ISSN:
0025-5874
Citation:
Mathematische Zeitschrift

Note: The status of this file is: public



 Record created 2019-07-10, last modified 2019-07-12

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