octad.group - The “Octad Group” as Symmetries of the 4×4 Square « Log24

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From "Mathieu Moonshine and Symmetry Surfing" —

(Submitted on 29 Sep 2016, last revised 22 Jan 2018) by Matthias R. Gaberdiel (1), Christoph A. Keller (2), and Hynek Paul (1)

(1) Institute for Theoretical Physics, ETH Zurich (2) Department of Mathematics, ETH Zurich