3 problems

Let $(X,\Delta)$ be a klt log Calabi–Yau pair, meaning that $X$ is smooth projective and $\Delta \in |-K_X|$ is linearly equivalent to $\sum_i a_iD_i$ for effective divisors $D_i$…

Let $(X,B)$ be an $n$-dimensional log Calabi–Yau pair, meaning that $X$ is a proper variety, $B$ is an effective $\mathbb{R}$-divisor, $(X,B)$ is log canonical, and $K_X+B$ is…

Let $(X,B)$ be a log Calabi–Yau pair, meaning that $X$ is a proper variety, $B$ is an effective $\mathbb{R}$-divisor, $(X,B)$ is log canonical, and $K_X+B$ is $\mathbb{R}$-linearly…