Rigid Cohomology and de Rham-Witt Complexes
Rigid Cohomology and de Rham-Witt Complexes
Let k be a perfect field of characteristic p > 0, W_n = W_n(k) . For separated k -schemes of finite type, we explain how rigid cohomology with compact supports can be computed as the cohomology of certain de Rham-Witt complexes with coefficients. This result generalizes the classical comparison theorem …