Using operations, we give some results on the kernel of the natural map from the monoid algebra of a commutative ring to the ring of -Witt vectors of . As a byproduct we obtain a very natural interpretation of a power series used by Dwork in his proof of the rationality of zeta functions for varieties over finite fields.
Cite this article
Christopher Deninger, Anton Mellit, and rings of Witt vectors . Rend. Sem. Mat. Univ. Padova 142 (2019), pp. 93–102DOI 10.4171/RSMUP/32