Spin covers of maximal compact subgroups of Kac-Moody groups and spin-extended Weyl groups

David Ghatei, Max Horn, Ralf Köhl +1

Let G be a split real Kac-Moody group of arbitrary type and let K be its maximal compact subgroup, i.e. the subgroup of elements fixed by a Cartan-Chevalley involution of G. We con…