In mathematics, II25,1 is the even 26-dimensional Lorentzian unimodular lattice. It has several unusual properties, arising from Conway's discovery that it has a norm zero Weyl vector. In particular it is closely related to the Leech lattice, and has the Conway group Co1 at the top of its automorphism group.
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C. Chang, C. Körber, and A. Walker-Loud. (2019)cite arxiv:1912.03580Comment: Repository: https://github.com/callat-qcd/espressodb, use case: https://github.com/callat-qcd/lattedb.