Geodesic
Poincaré duality groups of dimension two.
Commentarii mathematici Helvetici, Tome 55 (1980), pp. 510-520.

Voir la notice de l'article provenant de la source European Digital Mathematics Library

Mots-clés : Poincare duality groups, PD2-groups, surface groups of closed surfaces, decomposition theory for group pairs, Betti number, finitely generated free subgroups, Mayer-Vietoris sequence, Nielsen's conjecture, surface group of finite index 
@article{CMH_1980__55_139841,
     author = {Beno Eckmann and Heinz M\"uller},
     title = {Poincar\'e duality groups of dimension two.},
     journal = {Commentarii mathematici Helvetici},
     pages = {510--520},
     publisher = {mathdoc},
     volume = {55},
     year = {1980},
     zbl = {0458.20048},
     url = {http://geodesic.mathdoc.fr/item/CMH_1980__55_139841/}
}
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Beno Eckmann; Heinz Müller. Poincaré duality groups of dimension two.. Commentarii mathematici Helvetici, Tome 55 (1980), pp. 510-520. http://geodesic.mathdoc.fr/item/CMH_1980__55_139841/