Topology
The extended mapping class group is generated by 3 symmetries
[Le groupe modulaire étendu est engendré par 3 symétries]
Comptes Rendus. Mathématique, Tome 338 (2004) no. 5, pp. 403-406.

Nous prouvons que pour chaque g⩾1 le groupe modulaire étendu est éngendré par trois involutions qui inversent l'orientation.

We prove that for g⩾1 the extended mapping class group is generated by three orientation reversing involutions.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crma.2003.12.028
Stukow, Michał 1

1 Institute of Mathematics, University of Gdańsk, Wita Stwosza 57, 80-952 Gdańsk, Poland
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Stukow, Michał. The extended mapping class group is generated by 3 symmetries. Comptes Rendus. Mathématique, Tome 338 (2004) no. 5, pp. 403-406. doi : 10.1016/j.crma.2003.12.028. http://www.numdam.org/articles/10.1016/j.crma.2003.12.028/

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