GEOMETRIC LOCAL -FACTORS IN HIGHER DIMENSIONS
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Abstract We prove a product formula for the determinant of the cohomology of an étale sheaf with $\ell $ -adic coefficients over an arbitrary proper scheme over a perfect field of positive characteristic p distinct from $\ell $ . The local contributions are constructed by iterating vanishing cycle functors as well as certain exact additive functors that can be considered as linearised versions of Artin conductors and local $\varepsilon $ -factors. We provide several applications of our higher dimensional product formula, such as twist formulas for global $\varepsilon $ -factors.
2014 ◽
Vol 13
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pp. 57-81
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2015 ◽
Vol 14
(09)
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pp. 1540007
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2017 ◽
Vol 28
(05)
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pp. 1750030
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2004 ◽
Vol 69
(4)
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pp. 1006-1026
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2010 ◽
Vol 10
(1)
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pp. 191-224
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2014 ◽
Vol 35
(7)
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pp. 2242-2268
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2010 ◽
Vol 06
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pp. 1541-1564
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