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math.AG2023
Artin-Schreier-Witt Theory for Stacky Curves
Andrew Kobin
We extend our previous classification of stacky curves in positive characteristic using higher ramification data and Artin-Schreier-Witt theory. The main new technical tool introdu…
math.NT2023
Categorifying Zeta Functions for Quadratic Covers
Jon Aycock, Andrew Kobin
In various contexts, the zeta function of an object splits into a product of -functions. We categorify this product formula for quadratic covers of objects in the following cont…