3 papers
math.RT2022
The twining character formula for reductive groups
Jackson Hopper
Let be a connected reductive group over an algebraically closed field with a pinning-preserving outer automorphism . Jantzen's twining character formula relates th…
math.NT2017
On covering systems of integers
Jackson Hopper
A covering system of the integers is a finite collection of modular residue classes whose union is all integers. Given a finite set of moduli, it i…
math.NT2015
Digitally delicate primes
Jackson Hopper, Paul Pollack
Tao has shown that in any fixed base, a positive proportion of prime numbers cannot have any digit changed and remain prime. In other words, most primes are "digitally delicate". W…