Isomorphisms among quantum Grothendieck rings and propagation of positivity

Ryo Fujita, David Hernandez, Se-jin Oh +1

Let ($\mathfrak{g},\mathsf{g})$ be a pair of complex finite-dimensional simple Lie algebras whose Dynkin diagrams are related by (un)folding, with $\mathsf{g}$ being of simply-lace…