EntityQ1200244· pop 15· linked from 513 articlesE8Sign in to save248-dimensional exceptional simple Lie groupConnectionssimple Lie groupEntityroot systemEntityadjoint representationEntityhistory of string theoryEntitystring theoryEntityOn-Line Encyclopedia of Integer SequencesEntityLie groupEntitytopological groupEntityorthogonal groupEntityJohn C. BaezEntityheterotic string theoryEntityblack braneEntitymathematicsEntityphysicsEntityBlack holeConceptInternational Standard Book NumberEntitycobaltEntityniobiumEntityintegerEntityHenri PoincaréEntityCategoriesE8 (mathematics)Exceptional Lie algebrasLie groups