A short proof, using graphs and groupoids, is given of Brodskii’s theorem that torsion-free one-relator groups are locally indicable.
@article{urn:eudml:doc:41412,
title = {A short proof of a theorem of Brodskii.},
journal = {Publicacions Matem\`atiques},
volume = {44},
year = {2000},
pages = {613-647},
mrnumber = {MR1800825},
zbl = {0983.20025},
language = {en},
url = {http://dml.mathdoc.fr/item/urn:eudml:doc:41412}
}
Howie, James. A short proof of a theorem of Brodskii.. Publicacions Matemàtiques, Tome 44 (2000) pp. 613-647. http://gdmltest.u-ga.fr/item/urn:eudml:doc:41412/