Showing math.ATShow all
2 papers · 1 filter
math.AT2025
A necessary condition for liftings of positive characteristic varieties with finite fundamental groups
Ruida Di, Runjie Hu, Siqing Zhang
In this paper, we introduce a necessary condition for the existence of characteristic zero liftings of certain smooth, proper varieties in positive characteristic, using etale homo…
math.AT2025
Formal Manifold Structures on Positive Characteristic Varieties
Runjie Hu, Siqing Zhang
In his 1970 ICM report, Sullivan proposes the program of l-adic formalization of the concept of manifolds. In this program, he claims that smooth positive characteristic varieties…