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Intersections of finitely generated subgroups of free groups and resolutions of graphs. (English) Zbl 0521.20014

MSC:
20E07 Subgroup theorems; subgroup growth
20E05 Free nonabelian groups
05C25 Graphs and abstract algebra (groups, rings, fields, etc.)
20F05 Generators, relations, and presentations of groups
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References:
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