2018/03/02 by Deninger, Christopher, Mellit, Anton
#Commutative Algebra (math.AC) #FOS: Mathematics
paper · doi:10.48550/arxiv.1803.00812
Using λ operations, we give some results on the kernel of the natural map from the monoid algebra ℤ R of a commutative ring R to the ring of S-Witt vectors of R. 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.