2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/73249In the early 1980s Ross Geoghegan and I calculated the homology of Richard Thompson's group F as a graded abelian group. It turns out that the homology admits a natural ring structure, which I calculate in this paper. As a byproduct, I obtain the ring structure on the cohomology.13 pages, 6 figuresGroup TheoryAlgebraic Topology20J06 (Primary); 55P20 (Secondary)text