Monomorphisms of finitely generated free groups have finitely generated equalizers.
Goldstein, R.Z. ; Turner, E.G.
Inventiones mathematicae, Tome 82 (1985), p. 283-290 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1985-01-01
EUDML-ID : urn:eudml:doc:143287 
@article{GDZPPN00210220X,
     title = {Monomorphisms of finitely generated free groups have finitely generated equalizers.},
     journal = {Inventiones mathematicae},
     volume = {82},
     year = {1985},
     pages = {283-290},
     zbl = {0582.20023},
     url = {http://dml.mathdoc.fr/item/GDZPPN00210220X}
}

Goldstein, R.Z.; Turner, E.G. Monomorphisms of finitely generated free groups have finitely generated equalizers.. Inventiones mathematicae, Tome 82 (1985) pp. 283-290. http://gdmltest.u-ga.fr/item/GDZPPN00210220X/