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- W112778816 abstract "We show that the hard part of Whitehead's algorithm for solving the automorphism problem in a fixed free group Fk terminates in linear time (in terms of the length of an input) on an exponentially generic set of input pairs and thus the algorithm has strongly linear-time generic-case complexity. We also prove that the stabilizers of generic elements of Fk in Aut(Fk) are cyclic groups generated by inner auto- morphisms. We apply these results to one-relator groups and show that one-relator groups are generically complete groups, that is, they have trivial center and trivial outer automorphism group. We prove that the number In of isomorphism types of k-generator one-relator groups with defining relators of length n satisfies c1 n (2k 1) n � Inc" @default.
- W112778816 created "2016-06-24" @default.
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- W112778816 date "2003-01-01" @default.
- W112778816 modified "2023-09-26" @default.
- W112778816 title "Generic properties of Whitehead's Algorithm, stabilizers in Aut(F k ) and one-relator groups" @default.
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- W112778816 hasPublicationYear "2003" @default.
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