Commensurations of subgroups of Out(FN)

A theorem of Farb and Handel [FH07] asserts that for N ≥ 4, the natural inclusion from Out(FN ) into its abstract commensurator is an isomorphism. We give a new proof of their result, which enables us to generalize it to the case where N = 3. More generally, we give sufficient conditions on a subgro...

पूर्ण विवरण

ग्रंथसूची विवरण
मुख्य लेखकों: Horbez, C, Wade, R
स्वरूप: Journal article
भाषा:English
प्रकाशित: American Mathematical Society 2020

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