Invariant theory and the Heisenberg vertex algebra

AR Linshaw — International Mathematics Research Notices, 2012 — imrn.oxfordjournals.org

... One of the most basic examples of an invariant vertex algebra was studied by Dong–Nagatomo

[5]. Let denote the Heisenberg vertex algebra, which is generated by a field α satisfying the

operator product expansion (OPE) relation α(z)α(w)∼(z−w) −2 . Clearly the automorphism ...