del Pezzo surfaces with one bad prime over cyclotomic $\mathbb{Z}_\ell$-extensions
del Pezzo surfaces with one bad prime over cyclotomic $\mathbb{Z}_\ell$-extensions
Let $K$ be a number field and $S$ a finite set of primes of $K$. Scholl proved that there are only finitely many $K$-isomorphism classes of del Pezzo surfaces of any degree $1 \le d \le 9$ over $K$ with good reduction away from $S$. Let instead $K$ be the cyclotomic $\mathbb{Z}_5$-extension of $\mathbb{Q}$.In this paper, we show, for $d=3$, $4$, that there are infinitely many $\overline{\mathbb{Q}}$ isomorphism classes of del Pezzo surfaces, defined over $K$, with good reduction away from the unique prime above $5$.
Maryam Nowroozi
数学
Maryam Nowroozi.del Pezzo surfaces with one bad prime over cyclotomic $\mathbb{Z}_\ell$-extensions[EB/OL].(2025-05-16)[2025-06-08].https://arxiv.org/abs/2505.11348.点此复制
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