A 1 1/2-dimensional version of Hopf's Theorem on the number of ends of a group.
Bieri, Robert
Commentarii mathematici Helvetici, Tome 57 (1982), p. 25-40 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1982-01-01
EUDML-ID : urn:eudml:doc:139893 
@article{GDZPPN002064529,
     title = {A 1 1/2-dimensional version of Hopf's Theorem on the number of ends of a group.},
     journal = {Commentarii mathematici Helvetici},
     volume = {57},
     year = {1982},
     pages = {25-40},
     zbl = {0485.20046},
     url = {http://dml.mathdoc.fr/item/GDZPPN002064529}
}

Bieri, Robert. A 1 1/2-dimensional version of Hopf's Theorem on the number of ends of a group.. Commentarii mathematici Helvetici, Tome 57 (1982) pp. 25-40. http://gdmltest.u-ga.fr/item/GDZPPN002064529/