Chris Hall

activity

20062011

most citedBig symplectic or orthogonal monodromy modulo l

1 citations · 1 across the 4 of their papers we have counts for

collaborators

Showing 2008Show all

2 papers · 1 filter

math.NT2008

Non-simple abelian varieties in a family: geometric and analytic approaches

J. Ellenberg, C. Elsholtz, C. Hall +1

Let $A_{t}$ be a family of abelian varieties over a number field $k$ parametrized by a rational coordinate $t$ , and suppose the generic fiber of $A_{t}$ is geometrically simple. For ex…

math.GR2008

Monodromy Groups of Hurwitz-type Problems

Daniel Allcock, Chris Hall

We solve the Hurwitz monodromy problem for degree-4 covers. That is, the Hurwitz space H_{4,g} of all simply branched covers of P^1 of degree 4 and genus g is an unramified cover o…