Abstract
For suitable subgroups of a finitely generated group, we define the intersection number of one subgroup with another subgroup and show that this number is symmetric. We also give an interpretation of this number.
Citation
Peter Scott. "The symmetry of intersection numbers in group theory." Geom. Topol. 2 (1) 11 - 29, 1998. https://doi.org/10.2140/gt.1998.2.11
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