Comparisons of Lie algebra cohomologies of (φ, Γ)-modules

We generalise a result of Fourquaux and Xie thereby completely determining the relationship between Qp-analytic and L-analytic Lie algebra cohomology of analytic (φL, ΓL)-modules. We use the results to conclude that for L̸ = Qp, there exist examples of étale (φL, ΓL)-modules over Robba rings whose...

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1. Verfasser: Steingart, Rustam (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 19 September 2025
In: Journal de théorie des nombres de Bordeaux
Year: 2025, Jahrgang: 37, Heft: 2, Pages: 665-690
ISSN:2118-8572
DOI:10.5802/jtnb.1336
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.5802/jtnb.1336
Verlag, kostenfrei, Volltext: https://jtnb.centre-mersenne.org/articles/10.5802/jtnb.1336/
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Verfasserangaben:Rustam Steingart
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Zusammenfassung:We generalise a result of Fourquaux and Xie thereby completely determining the relationship between Qp-analytic and L-analytic Lie algebra cohomology of analytic (φL, ΓL)-modules. We use the results to conclude that for L̸ = Qp, there exist examples of étale (φL, ΓL)-modules over Robba rings whose Qp-analytic cohomology does not arise as a base change of Galois cohomology.
Beschreibung:Gesehen am 25.02.2026
Beschreibung:Online Resource
ISSN:2118-8572
DOI:10.5802/jtnb.1336