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arXiv · hep-th/9809026

Affine Lie Algebras, String Junctions and 7-Branes

Oliver DeWolfe
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Abstract

We consider the realization of affine ADE Lie algebras as string junctions on mutually non-local 7-branes in Type IIB string theory. The existence of the affine algebra is signaled by the presence of the imaginary root junction ``delta'', which is realized as a string encircling the 7-brane configuration. The level k of an affine representation partially constrains the asymptotic (p,q) charges of string junctions departing the configuration. The junction intersection form reproduces the full affine inner product, plus terms in the asymptotic charges.

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Oliver DeWolfe. 1998-09-03. Affine Lie Algebras, String Junctions and 7-Branes. https://doi.org/10.1016/s0550-3213(99)00231-x

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