The cohomology of projective unitary groups
Algebraic Topology
2026-05-05 v6
Abstract
The projective unitary group PU(n) is the quotient of the unitary group U(n) by its center. We compute the integral cohomology ring of PU(n) using explicit constructed generators.
Cite
@article{arxiv.1710.09222,
title = {The cohomology of projective unitary groups},
author = {Haibao Duan},
journal= {arXiv preprint arXiv:1710.09222},
year = {2026}
}
Comments
24 pages, to appear in Proceedings of the Steklov Institute of Mathematics