Automorphic Lie algebras with dihedral symmetry

Vincent Knibbeler, Sara Lombardo, Jan Sanders

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)
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Abstract

The concept of automorphic Lie algebras arises in the context of reduction groups introduced in the early 1980s in the field of integrable systems. Automorphic Lie algebras are obtained by imposing a discrete group symmetry on a current algebra of Krichever–Novikov type. Past work shows remarkable uniformity between algebras associated to different reduction groups. For example, if the base Lie algebra is sl2(C) and the poles of the automorphic Lie algebra are restricted to an exceptional orbit of the symmetry group, changing the reduction group does not affect the Lie algebra structure. In this research we fix the reduction group to be the dihedral group and vary the orbit of poles as well as the group action on the base Lie algebra. We find a uniform description of automorphic Lie algebras with dihedral symmetry, valid for poles at exceptional and generic orbits.
Original languageEnglish
Pages (from-to)365201-365220
JournalJournal of Physics A: Mathematical and Theoretical
Volume47
Issue number36
DOIs
Publication statusPublished - 21 Aug 2014

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