EntityQ5512692· pop 8· linked from 105 articlesG₂ manifoldSign in to saveseven-dimensional Riemannian manifold with holonomy group contained in G₂Connectionshistory of string theoryEntitystring theoryEntitysimple Lie groupEntityblack braneEntityRicci-flat manifoldEntityBlack holeConceptInternational Standard Book NumberEntitydigital object identifierEntitygroupEntityDavid GrossEntityGerard 't HooftEntityholographyEntityMichio KakuEntitygravitonEntitydifferential geometryEntityJSTOROrganizationOxford University PressEntitytachyonEntityEdward WittenEntityMichael AtiyahEntityCategoriesDifferential geometryOctonionsRiemannian geometryStructures on manifolds