EntityQ1054513· pop 9· linked from 494 articlesE6Sign in to savei 78-dimensional exceptional simple Lie groupConnectionsroot systemEntityhistory of string theoryEntitysimple Lie groupEntitystring theoryEntityLie groupEntitygrand unified theoryEntitygauge theoryEntitytopological groupEntityorthogonal groupEntityblack braneEntitymathematicsEntityphysicsEntityBlack holeConceptInternational Standard Book NumberEntityintegerEntityHenri PoincaréEntitydigital object identifierEntityInternational Standard Serial NumberEntityparticle physicsEntityvector spaceEntityCategoriesAlgebraic groupsExceptional Lie algebrasLie groups