Birational geometry of Calabi-Yau pairs (P³, D) of coregularity 2

This paper aims to study the birational geometry of log Calabi-Yau pairs (P³, D) of coregularity 2, where in this case D is an irreducible normal quartic surface with canonical singularities. We completely classify which toric weighted blowups of a point will initiate a volume preserving Sarkisov link starting with this pair. Depending on the type of singularity, our results point out that some of these weights do not work generically for a general member of the corresponding coarse moduli space of quartics.