Twisted toroidal Lie algebras and Moody-Rao-Yokonuma presentation

Fulin Chen, Naihuan Jing, Fei Kong +1

Let $\fg$ be an affine Kac-Moody algebra, and $\mu$ a diagram automorphism of $\fg$. In this paper, we give an explicit realization for the universal central extension $\wh\fg[μ]$ of…