Characters of modules over negative rank-2 Borcherds-Kac-Moody Lie algebras

Souvik Pal, Supravat Sarkar, G. Krishna Teja

Let $\mathfrak{g}=\mathfrak{g}(A)$ be the Borcherds-Kac-Moody Lie algebra (BKM LA) for a BKM Cartan matrix $A$ that is filled by negative integers. Fix a Cartan subalgebra $\mathfr…