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Article Dans Une Revue Journal of Pure and Applied Algebra Année : 2019

On the stable Andreadakis problem

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Résumé

Let be the free group on n generators. Consider the group of automorphisms of acting trivially on its abelianization. There are two canonical filtrations on : the first one is its lower central series ⁎; the second one is the Andreadakis filtration ⁎, defined from the action on . In this paper, we establish that the canonical morphism between the associated graded Lie rings ⁎ and ⁎ is stably surjective. We then investigate a p-restricted version of the Andreadakis problem. A calculation of the Lie algebra of the classical congruence group is also included.
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Dates et versions

hal-02468983 , version 1 (25-10-2021)

Licence

Paternité - Pas d'utilisation commerciale - CC BY 4.0

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Citer

Jacques Darné. On the stable Andreadakis problem. Journal of Pure and Applied Algebra, 2019, 223 (12), pp.5484-5525. ⟨10.1016/j.jpaa.2019.04.010⟩. ⟨hal-02468983⟩
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