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.
Web page of the 5th edition of the International Conference on Formal Concept Analysis. This year, conference takes place in Clermont-Ferrand (France) from 12 to 16 of February 2007.
M. Hanada, Y. Matsuo, and N. Yamamoto. (2012)cite arxiv:1205.1030Comment: v2: 22 pages, 7 figures, typos fixed, references added, critical comment on arXiv:1204.2405 added.
E. Neil. (2012)cite arxiv:1205.4706Comment: 22 pages, 3 figures. Proceedings of the XXIX International Symposium on Lattice Field Theory (Lattice 2011).
M. Hanada, Y. Matsuo, and N. Yamamoto. (2012)cite arxiv:1210.2438Comment: Talk given at 30th International Symposium On Lattice Field Theory (Lattice 2012), Cairns Convention Centre, Cairns, Australia.