2 problems

Boundedness of $B$-canonical representations. There exist positive integers $B_l$ and $B'_l$ such that

Let $s_0=2$ and $s_m=s_{m-1}(s_{m-1}-1)+1$ for $m\geq 1$ be Sylvester's sequence. For a positive integer $n$, let $X$ be the $n$-fold given by the canonical Calabi–Yau hypersurface…