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Weak approximation for del Pezzo surfaces of low degree (2111.11409v3)
Published 22 Nov 2021 in math.AG and math.NT
Abstract: We prove, via an "arithmetic surjectivity" approach inspired by work of Denef, that weak weak approximation holds for surfaces with two conic fibrations satisfying a general assumption. In particular, weak weak approximation holds for general del Pezzo surfaces of degrees $1$ or $2$ with a conic fibration.
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