English

Free $(\mathbb{Z}/p)^n$-complexes and $p$-DG modules

Algebraic Topology 2022-02-09 v2 Commutative Algebra Representation Theory

Abstract

We reformulate the problem of bounding the total rank of the homology of perfect chain complexes over the group ring Fp[G]\mathbb{F}_p[G] of an elementary abelian pp-group GG in terms of commutative algebra. This extends results of Carlsson for p=2p=2 to all primes. As an intermediate step, we construct an embedding of the derived category of perfect chain complexes over Fp[G]\mathbb{F}_p[G] into the derived category of pp-DG modules over a polynomial ring.

Keywords

Cite

@article{arxiv.1805.06854,
  title  = {Free $(\mathbb{Z}/p)^n$-complexes and $p$-DG modules},
  author = {Jeremiah Heller and Marc Stephan},
  journal= {arXiv preprint arXiv:1805.06854},
  year   = {2022}
}

Comments

29 pages; improvements thanks to referees' comments, corrected hypothesis in Proposition 2.8, added relation to work of Friedlander-Pevtsova and Benson-Pevtsova, final version, to appear in Journal of Algebra

R2 v1 2026-06-23T01:58:58.535Z