The automorphism group of the free group of rank 2 is a \(\text{CAT}(0)\) group.

DOI10.1307/mmj/1281531457zbMath1205.20050arXiv0809.2034OpenAlexW2032399183MaRDI QIDQ1958000

Genevieve S. Walsh, Adam Piggott, Kim E. Ruane

Publication date: 28 September 2010

Published in: Michigan Mathematical Journal (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/0809.2034

zbMATH Keywords

finitely generated groupsgeometric actionsautomorphism groupsfree groupsCAT(0) groups

Mathematics Subject Classification ID

Geometric group theory (20F65) Topological methods in group theory (57M07) Automorphism groups of groups (20F28) Free nonabelian groups (20E05)

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