English

Homological vanishing for the Steinberg representation

Algebraic Topology 2019-02-20 v3 Group Theory Representation Theory

Abstract

For a field kk, we prove that the iith homology of the groups GLn(k)GL_n(k), SLn(k)SL_n(k), Sp2n(k)Sp_{2n}(k), SOn,n(k)SO_{n,n}(k), and SOn,n+1(k)SO_{n,n+1}(k) with coefficients in their Steinberg representations vanish for n2i+2n \geq 2i+2.

Keywords

Cite

@article{arxiv.1704.08344,
  title  = {Homological vanishing for the Steinberg representation},
  author = {Avner Ash and Andrew Putman and Steven V Sam},
  journal= {arXiv preprint arXiv:1704.08344},
  year   = {2019}
}

Comments

21 pages, 1 figure; major revision; to appear in Compositio Mathematica

R2 v1 2026-06-22T19:29:04.246Z