2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/139616In this paper we introduce the 2-typical de Rham-Witt complex for arbitrary commutative, unital rings and log-rings. We describe this complex for the rings \Z and \Z_{(2)}, for the log-ring (\Z_{(2)},M) with the canonical log-structure, and we describe its behaviour under polynomial extensions. In an appendix we also describe the $p$-typical de Rham-Witt complex of (\Z_{(p)},M) for p odd.36 pagesK-Theory and HomologyNumber Theory13K05, 19D55text