Geodesic
Infinitesimal deformations and the $\ell$-invariant
Documenta mathematica, Andrei A. Suslin's Sixtieth Birthday (2010), pp. 5-31.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

We give a formula for the generalized Greenberg's $\ell$-invariant which was constructed in [Zbl 05994421] in terms of derivatives of eigenvalues of Frobenius.
Classification : 11R23, 11F80
Keywords: $(\varphi, \Gamma)$-module, $L$-function, $p$-adic representation 
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     author = {Benois, Denis},
     title = {Infinitesimal deformations and the $\ell$-invariant},
     journal = {Documenta mathematica},
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Benois, Denis. Infinitesimal deformations and the $\ell$-invariant. Documenta mathematica, Andrei A. Suslin's Sixtieth Birthday (2010), pp. 5-31. http://geodesic.mathdoc.fr/item/DOCMA_2010__S4__a20/