Mathematics – Group Theory
Scientific paper
2010-05-27
Mathematics
Group Theory
7 pages; v2: fixed some misprints, the paper is accepted in Proc. LMS
Scientific paper
This is an addendum to arXiv: 0810.5376. We show, using our methods and an
auxiliary result of Bestvina-Bromberg-Fujiwara, that a finitely generated group
with infinitely many pairwise non-conjugate homomorphisms to a mapping class
group virtually acts non-trivially on an $\R$-tree, and, if it is finitely
presented, it virtually acts non-trivially on a simplicial tree
Behrstock Jason
Drutu Cornelia
Sapir Mark
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