Independence of twisted representations and Zhu's algebras under inner automorphisms

Let VV be a vertex operator algebra, let gg be an automorphism of VV, and let hh be an inner automorphism of VV. Consider lower bounded logarithmic gg-twisted and ghgh-twisted modules, together with their twisted Zhu's algebras.

Inner-automorphism invariance conjecture. There is a one-to-one correspondence between the simple objects in the category of lower bounded logarithmic gg-twisted modules and the simple objects in the category of lower bounded logarithmic ghgh-twisted modules, and

Ag(V)Agh(V).A_g(V)\simeq A_{gh}(V).

Thus both the simple twisted-module theory and the twisted Zhu's algebra should be independent of the inner automorphism used to modify gg. The preceding result establishes this invariance in the affine vertex-operator-algebra setting considered in the paper; the assertion for a general vertex operator algebra and automorphism is left open.

Sources & referencesView supporting material

Primary source

Jinwei Yang, “Twisted representations of vertex operator algebras associated to affine Lie algebras”, arXiv:1605.07223 (2016).

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