2022
DOI: 10.1112/mtk.12137
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Values of inhomogeneous forms at S ‐integral points

Abstract: We prove effective versions of Oppenheim's conjecture for generic inhomogeneous forms in the 𝑆-arithmetic setting. We prove an effective result for fixed rational shifts and generic forms and we also prove a result where both the quadratic form and the shift are allowed to vary.In order to do so, we prove analogues of Rogers' moment formulae for 𝑆-arithmetic congruence quotients as well as for the space of affine lattices. We believe the latter results to be of independent interest.

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Cited by 3 publications
(1 citation statement)
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“…[7, Theorem 5.2]). Let d ≥ 3 and let E = p∈S E p be the product of bounded Borel sets E p ⊆ Q d p for p ∈ S. There is a constant C d > 0, depending only on the dimension d, such that…”
mentioning
confidence: 99%
“…[7, Theorem 5.2]). Let d ≥ 3 and let E = p∈S E p be the product of bounded Borel sets E p ⊆ Q d p for p ∈ S. There is a constant C d > 0, depending only on the dimension d, such that…”
mentioning
confidence: 99%