2016
DOI: 10.4310/mrl.2016.v23.n3.a16
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A uniform bound for the order of monodromy

Abstract: Abstract. We give a bound for the order of the local monodromy of a compatible system of l-adic representations, which is independent of l. For the etale cohomology of a variety, the bound depends only on some numerical invariants of varieties.

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Cited by 2 publications
(2 citation statements)
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“…Remark 2.4. -For smooth, projective, geometrically connected X η /η, explicit uniform bounds for the index of I 1 in I for the action of I on H i (Xη, Q ) in terms of the Betti numbers of X η and numerical invariants associated with a very ample line bundle on X η were obtained by Umezaki [75].…”
Section: The Geometric Local Monodromy Theoremmentioning
confidence: 99%
“…Remark 2.4. -For smooth, projective, geometrically connected X η /η, explicit uniform bounds for the index of I 1 in I for the action of I on H i (Xη, Q ) in terms of the Betti numbers of X η and numerical invariants associated with a very ample line bundle on X η were obtained by Umezaki [75].…”
Section: The Geometric Local Monodromy Theoremmentioning
confidence: 99%
“…Le résultat de P. Deligne [Ber97, 6.3.2] d’indépendance de dans le théorème de monodromie de Grothendieck est également un corollaire immédiat de 5.1, du moins pour un trait excellent. Pour des précisions numériques dans cette direction, voir [Ume16].…”
Section: Applicationsunclassified