The cohomology theory known as Tmf, for “topological modular forms,” is a universal object mapping out to elliptic cohomology theories, and its coefficient ring is closely connected to the classical ring of modular forms. We extend this to a functorial family of objects corresponding to elliptic curves with level structure and modular forms on them. Along… (More)

@inproceedings{Hill2015TopologicalMF,
title={Topological modular forms with level structure},
author={Michael A Hill and Tyler D. Lawson},
year={2015}
}