Strong integrality of inversion subgroups of Kac-Moody groups

Abid Ali, Lisa Carbone, Dongwen Liu +1

Let $A$ be a symmetrizable generalized Cartan matrix with corresponding Kac--Moody algebra $\mathfrak{g}$ over $\mathbb{Q}$. Let $V=V^{\lambda }$ be an integrable highest weight $\mathfrak{g}$-mod…