2 problems

The resulting invariants are the log BPS invariants $m^P_\beta$ and $m^{tot}_\beta$ associated with a log Calabi-Yau surface $(S,E)$, while $\operatorname{Tot}(K_S)$ denotes the to…

Assume that $S$ is a del Pezzo surface and $E$ is an anticanonical divisor. Let $P\in E(\beta)$ be $\beta$-primitive, where $m^P_\beta$ is the log BPS number at $P$ and $n_\beta$ i…