Let N stand for the class of nilpotent groups or one of its well-known generalizations. For a multilinear commutator word w and a profinite group G we show that w(G) is finite-by-N if and only if the set of wvalues in G is covered by countably many finite-by-N subgroups. Earlier this was known only in the case where w = x or w = [x, y].
On profinite groups with word values covered by nilpotent subgroups / Detomi, Eloisa; Morigi, Marta; Shumyatsky, Pavel. - In: ISRAEL JOURNAL OF MATHEMATICS. - ISSN 0021-2172. - STAMPA. - 226:2(2018), pp. 993-1008. [10.1007/s11856-018-1720-2]
On profinite groups with word values covered by nilpotent subgroups
Morigi, Marta;
2018
Abstract
Let N stand for the class of nilpotent groups or one of its well-known generalizations. For a multilinear commutator word w and a profinite group G we show that w(G) is finite-by-N if and only if the set of wvalues in G is covered by countably many finite-by-N subgroups. Earlier this was known only in the case where w = x or w = [x, y].File in questo prodotto:
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