4 papers
math.AG2026
Simply branched covers of curves and wild conductor exponents
Harry Spencer
We use deformation theory to show that a cover of smooth, projective, geometrically connected curves over a -adic field can be -adically perturbed to obtain…
math.NT2026
Wild conductor exponents of curves
Harry Spencer
We give an explicit formula for wild conductor exponents of plane curves over in terms of standard invariants of explicit extensions of , generalising…
math.NT2026
Motivic pieces of curves: -functions and periods
Harry Spencer
Given a curve over a number field equipped with the action of a finite group by -automorphisms, one obtains a factorisation of into a product of -functio…
math.NT2025
Constructing families of 3-Selmer companions
Harry Spencer
Mazur and Rubin introduced the notion of -Selmer companion elliptic curves and gave several examples of pairs of non-isogenous Selmer companions. We construct several pairs of f…