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Maximum number of points on an intersection of a cubic threefold and a non-degenerate Hermitian threefold

Published: 18 October 2024 Publication History

Abstract

It was conjectured by Edoukou in 2008 that a non-degenerate Hermitian threefold in P 4 ( F q 2 ) has at most d ( q 5 + q 2 ) + q 3 + 1 points in common with a threefold of degree d defined over F q 2. He proved the conjecture for d = 2. In this paper, we show that the conjecture is true for d = 3 and q ≥ 7.

References

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    Published In

    cover image Finite Fields and Their Applications
    Finite Fields and Their Applications  Volume 98, Issue C
    Sep 2024
    349 pages

    Publisher

    Elsevier Science Publishers B. V.

    Netherlands

    Publication History

    Published: 18 October 2024

    Author Tags

    1. 14G05
    2. 14G15
    3. 05B25

    Author Tags

    1. Hermitian threefolds
    2. Cubic threefolds
    3. Rational points
    4. Edoukou's conjecture

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