Ruida Di

collaborators

3 papers

math.NT2026

Covering Projective Height Balls by Subspaces in Rigid Adelic Spaces

Ruida Di, Runjie Hu

Let $E$ be an $n$ -dimensional rigid adelic space over a number field $K$ . We study the minimum number $g_{E} (R)$ of proper $K$ -subspaces needed to cover the projective height ball of…

math.NT2026

Joint Equidistribution of Subspaces of Bounded Height in Rigid Adelic Spaces

Ruida Di

For every $1 \leq d < n$ , we prove joint equidistribution, as the height tends to infinity, of $d$ -dimensional $K$ -subspaces in a rigid adelic space over a number field $K$ , together w…

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…