#### DOCUMENTA MATHEMATICA,
Vol. Extra Volume: Andrei A. Suslin's Sixtieth Birthday (2010), 5-31

** Denis Benois **
Infinitesimal Deformations and the $l$-Invariant

We give a formula for the generalized Greenberg's $l$-invariant which
was constructed in [Ben2] in terms of derivatives of eigenvalues of Frobenius.

2010 Mathematics Subject Classification: 11R23, 11F80, 11S25, 11G40, 14F30

Keywords and Phrases: $p$-adic representation, $(\varphi,\Gamma)$-module, $L$-function

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