Orthogonal and symplectic Yangians - linear and quadratic evaluations
arXiv:1712.06849 · doi:10.1016/j.nuclphysb.2018.05.022
Abstract
Orthogonal or symplectic Yangians are defined by the Yang-Baxter $RLL$ relation involving the fundamental $R$ matrix with $so(n)$ or $sp(2m)$ symmetry. Simple $L$ operators with linear or quadratic dependence on the spectral parameter exist under restrictive conditions. These conditions are investigated in general form.
21 pages