1. On the non-existence of singular Borcherds products. accepted by Amer. J. Math. (with B. Williams) arXiv
2. On the classification of reflective modular forms. accepted by Eur. J. Math. arXiv
3. Hyperbolization of affine Lie algebras. accepted by Mem. Amer. Math. Soc. (with K. Sun & B. Williams) arXiv