2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/69854We give an explicit formula for the cohomology of a right angled Artin group with group ring coefficients in terms of the cohomology of its defining flag complex.Corrected minor errorsGeometric TopologyGroup Theory20F36; 57M07The cohomology of right angled Artin groups with group ring coefficientstext