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Equivalences between three presentations of orthogonal and symplectic Yangians

Representation Theory 2019-06-26 v2 Quantum Algebra

Abstract

We prove the equivalence of two presentations of the Yangian Y(g)Y(\mathfrak{g}) of a simple Lie algebra g\mathfrak{g} and we also show the equivalence with a third presentation when g\mathfrak{g} is either an orthogonal or a symplectic Lie algebra. As an application, we obtain an explicit correspondence between two versions of the classification theorem of finite-dimensional irreducible modules for orthogonal and symplectic Yangians.

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Cite

@article{arxiv.1706.05176,
  title  = {Equivalences between three presentations of orthogonal and symplectic Yangians},
  author = {Nicolas Guay and Vidas Regelskis and Curtis Wendlandt},
  journal= {arXiv preprint arXiv:1706.05176},
  year   = {2019}
}

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31 pages