Graphs, free groups and the Hanna Neumann conjecture
classification
🧮 math.GR
keywords
boundconjecturefreehannaneumannalthoughcontributionfinitely
read the original abstract
A new bound for the rank of the intersection of finitely generated subgroups of a free group is given, formulated in topological terms, and very much in the spirit of Stallings. The bound is a contribution to (although unfortunately not a solution of) the strengthened Hanna Neumann conjecture.
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