Geodesic
Commutator subgroups of irreducible $\mathrm C$-group
Sbornik. Mathematics, Tome 187 (1996) no. 3, pp. 403-412 
Yu. S. Semenov. Commutator subgroups of irreducible $\mathrm C$-group. Sbornik. Mathematics, Tome 187 (1996) no. 3, pp. 403-412. http://geodesic.mathdoc.fr/item/SM_1996_187_3_a4/
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     title = {Commutator subgroups of irreducible $\mathrm C$-group},
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Voir la notice de l'article provenant de la source Math-Net.Ru

A classification up to isomorphism is given of groups that are irreducible orientable $\mathrm C$-groups in the sense of Kulikov and have commutator subgroups that are either free of rank 2 or the Heisenberg group $\mathscr H_3$. In addition, it is shown that the commutator subgroup of every Coxeter group generated by a single conjugacy class of elements is the commutator subgroup of some irreducible orientable $\mathrm C$-group.

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