English

Tautological characteristic classes III: the Witt class for PSL(2)

K-Theory and Homology 2025-03-04 v1 Group Theory

Abstract

We explain the relation between the Witt class and the universal equicommutative class for PSL(2,K). We discuss an analogue of the Milnor-Wood inequality.

Cite

@article{arxiv.2503.01815,
  title  = {Tautological characteristic classes III: the Witt class for PSL(2)},
  author = {Jan Dymara and Tadeusz Januszkiewicz},
  journal= {arXiv preprint arXiv:2503.01815},
  year   = {2025}
}

Comments

15 pages

R2 v1 2026-06-28T22:05:05.996Z