Open Access
August 2010 The automorphism group of the free group of rank 2 is a CAT(0) group
Adam Piggott, Kim Ruane, Genevieve Walsh
Michigan Math. J. 59(2): 297-302 (August 2010). DOI: 10.1307/mmj/1281531457
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Vol.59 • No. 2 • August 2010
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