122 citations · 901 across the 71 of their papers we have counts for
4 papers · 1 filter
Singularities of ordinary deformation rings
Andrew Snowden
Let R^univ be the universal deformation ring of a residual representation of a local Galois group. Kisin showed that many loci in MaxSpec(R^univ[1/p]) of interest are Zariski close…
Real components of modular curves
Andrew Snowden
We study the real components of modular curves. Our main result is an abstract group-theoretic description of the real components of a modular curve defined by a congruence subgrou…
Finiteness of K3 surfaces and the Tate conjecture
Max Lieblich, Davesh Maulik, Andrew Snowden
Given a finite field k of characteristic at least 5, we show that the Tate conjecture holds for K3 surfaces defined over the algebraic closure of k if and only if there are only fi…
The geometry of eight points in projective space: Representation theory, Lie theory, dualities
Benjamin Howard, John Millson, Andrew Snowden +1
This paper deals with the geometry of the space (GIT quotient) M_8 of 8 points in P^1, and the Gale-quotient N'_8 of the GIT quotient of 8 points in P^3. The space M_8 comes with a…