The probability that r elements of a rank n free group generate a rank r subgroup |
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Authors: | N. V. Buskin |
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Affiliation: | (1) Novosibirsk State University, Novosibirsk, Russia |
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Abstract: | Granted the three integers n ≥ 2, r, and R, consider all ordered tuples of r elements of length at most R in the free group F n . Calculate the number of those tuples that generate in F n a rank r subgroup and divide it by the number of all tuples under study. As R → ∞, the limit of the ratio is known to exist and equal 1 (see [1]). We give a simple proof of this result. |
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Keywords: | typical subgroups random subgroups |
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