EntityQ768074· pop 13· linked from 174 articlesWeyl groupSign in to savesubgroup of a root system's isometry groupConnectionsCoxeter groupEntityorthogonal groupEntitysemisimple Lie algebraEntitycentralizerEntitysimple Lie groupEntitymathematicsEntityphysicsEntityInternational Standard Book NumberEntityHenri PoincaréEntitydigital object identifierEntityHermann WeylEntitytorusEntityJSTOREntitySophus LieEntityÉlie CartanEntitysubgroupEntityorthogonalityEntityLie groupEntityMathWorldEntityLie algebraEntityCategoriesFinite reflection groupsLie algebrasLie groups