papers

Publications (46)

math.AT2008

Galois extensions of Lubin-Tate spectra

Andrew Baker, Birgit Richter

Let E_n be the n-th Lubin-Tate spectrum at a prime p. There is a commutative S-algebra E^{nr}_n whose coefficients are built from the coefficients of E_n and contain all roots of u…

math.AT2024

Endotrivial modules for the quaternion group and iterated Jokers in chromatic homotopy theory

Andrew Baker

The algebraic Joker module was originally described in the 1970s by Adams and Priddy and is a -dimensional module over the subHopf algebra of the mod Steenr…

math.AT2005

Realizability of algebraic Galois extensions by strictly commutative ring spectra

Andrew Baker, Birgit Richter

We discuss some of the basic ideas of Galois theory for commutative S-algebras originally formulated by John Rognes. We restrict attention to the case of finite Galois groups and t…

math.NT2022

Asymptotics, Turán inequalities, and the distribution of the BG-rank and 2-quotient rank of partitions

Andrew Baker, Joshua Males

Let be even positive integers, and let denote the number of partitions with BG-rank , and to be the number of partitions with B…

math.AT2007

Isogenies of supersingular elliptic curves over finite fields and operations in elliptic cohomology

Andrew Baker

We investigate stable operations in supersingular elliptic cohomology using isogenies of supersingular elliptic curves over finite fields. Our main results provide a framework in w…

econ.EM2025

Difference-in-Differences Designs: A Practitioner's Guide

Andrew Baker, Brantly Callaway, Scott Cunningham +2

Difference-in-differences (DiD) is arguably the most popular quasi-experimental research design. Its canonical form, with two groups and two periods, is well-understood. However, e…