The level 2 and 3 modular invariants for the orthogonal algebras

dc.creatorGannon, Terry
dc.date1998-09-04
dc.date.accessioned2026-07-07T05:25:53Z
dc.date.available2026-07-07T05:25:53Z
dc.descriptionThis paper finds for all orthogonal algebras (i.e. the B and D series) all modular invariant 1-loop partition functions at levels 1,2,3. Previously, only those at level 1 were classified. An extraordinary number of exceptionals appear at level 2 -- indeed this is the primary motivation for this paper -- and we find infinitely many new ones there. The only level 3 exceptionals occur for $B_2$ and $D_7$, and the latter appear to be new. The $B_{2,3}$ and $D_{7,3}$ exceptionals are cousins of the "$E_6$" and "$E_8$" exceptionals in the A-D-E classification for affine $A_1$, while the level 2 exceptionals are related to the lattice invariants of affine u(1).
dc.description18 pages, plain tex
dc.identifierhttps://arxiv.org/abs/math/9809020
dc.identifierhttp://arxiv.org/abs/math/9809020
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/77353
dc.subjectQuantum Algebra
dc.subjectHigh Energy Physics - Theory
dc.titleThe level 2 and 3 modular invariants for the orthogonal algebras
dc.typetext

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