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arXiv · math/0312497

The de Rham-Witt complex and p-adic vanishing cycles

Thomas Geisser·Lars Hesselholt
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Abstract

We determine the structure modulo p of the de Rham-Witt complex of a smooth scheme X over a discrete valuation ring of mixed characteristic with log-poles along the special fiber Y and show that the sub-sheaf fixed by the Frobenius is isomorphic to the sheaf of p-adic vanishing cycles. We use this together with results of the second author and Madsen to evaluate the $K$-theory with finite coefficients of the quotient field K of the henselian local ring of X at a generic point of Y. The result affirms the Lichtenbaum-Quillen conjecture for the field K.

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Thomas Geisser, Lars Hesselholt. 2003-12-30. The de Rham-Witt complex and p-adic vanishing cycles. https://doi.org/10.1090/s0894-0347-05-00505-9

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