Mathematics – Group Theory
Scientific paper
2009-05-03
Mathematics
Group Theory
Scientific paper
Let F_n denote the free group generated by n letters. The purpose of this article is to show that Hol(F_2), the holomorph of the free group on two generators, is linear. Consequently, any split group extension of F_2 by a linear group H is linear. This result gives a large linear subgroup of Aut(F_3). A second application is that the mapping class group for genus one surfaces with two punctures is linear.
Cohen Frederick R.
Metaftsis Vassilis
Prassidis Stratos
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