Parity in Bloch ’ s conductor formula in even dimension par Takeshi
نویسنده
چکیده
For a variety over a local field, Bloch proposed a conjectural formula for the alternating sum of Artin conductor of `adic cohomology. We prove that the formula is valid modulo 2 if the variety has even dimension.
منابع مشابه
On the Conductor Formula of Bloch
In [6], S. Bloch conjectures a formula for the Artin conductor of the l-adic etale cohomology of a regular model of a variety over a local field and proves it for a curve. The formula, which we call the conductor formula of Bloch, enables us to compute the conductor that measures the wild ramification by using the sheaf of differential 1-forms. In this paper, we prove the formula in arbitrary d...
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Conductor is a numerical invariant of a variety over a local field measuring the wild ramification of the inertia action on the l-adic etale cohomology. In [3], S.Bloch proposes a conjectural formula, Conjecture 1.9, which we call the conductor formula of Bloch. To formulate it, he defines another numerical invariant as the degree of the self-intersection class, which is defined using the local...
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