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11.60 (1990)

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Is it true that the hypothetical Moore graph with 3250 vertices of valence 57 has no automorphisms of order 2? M. Aschbacher (J. Algebra, 19, no. 4 (1971), 538–540) proved that this graph is not a graph of rank 3.

Contributor: A. A. Makhnëv

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