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arXiv · 1104.1563

Product formula for p-adic epsilon factors

Tomoyuki Abe·Adriano Marmora
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Abstract

Let X be a smooth proper curve over a finite field of characteristic p. We prove a product formula for p-adic epsilon factors of arithmetic D-modules on X. In particular we deduce the analogous formula for overconvergent F-isocrystals, which was conjectured previously. The p-adic product formula is the equivalent in rigid cohomology of the Deligne-Laumon formula for epsilon factors in l-adic étale cohomology (for a prime l different from p). One of the main tools in the proof of this p-adic formula is a theorem of regular stationary phase for arithmetic D-modules that we prove by microlocal techniques.

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Tomoyuki Abe, Adriano Marmora. 2013-10-03. Product formula for p-adic epsilon factors. https://doi.org/10.1017/s1474748014000024

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