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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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[10] Magnus, W., Karrass, A., Solitar, D.: Combinatorial group theory. New York: Wiley 1966 · Zbl 0138.25604
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[13] Spanier, E.: Algebraic topology. New York: McGraw-Hill 1966) · Zbl 0145.43303
[14] Stallings, J.: Topology of finite graphs · Zbl 0521.20013
[15] Stallings, J.: topologically unrealizable automorphisms of free groups. Proc. AMS84, 21–24 (1982) · Zbl 0477.20012 · doi:10.1090/S0002-9939-1982-0633269-8
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