Outer actions of Out (Fn) on small right-angled Artin groups
We determine the precise conditions under which SOut(Fn), the unique index-two subgroup of Out(Fn), can act nontrivially via outer automorphisms on a RAAG whose defining graph has fewer than 12(n2) vertices. We also show that the outer automorphism group of a RAAG cannot act faithfully via outer au...
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Định dạng: | Journal article |
Ngôn ngữ: | English |
Được phát hành: |
Mathematical Sciences Publishers
2018
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