Abstract:
Maximal 2-signalizers and centralizers of Sylow 2-subgroups in all finite simple groups are described. Also normalizers are computed for Sylow 2-subgroups in the finite simple groups of exceptional Lie type over a field of odd characteristic.
Keywords:finite simple group, finite simple group of exceptional Lie type over a field of odd characteristic, Sylow 2-subgroup, maximal 2-signalizer, centralizer, normalizer.