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Trinomial coefficients and a determinant of Sun

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 نشر من قبل Hai-Liang Wu
 تاريخ النشر 2021
  مجال البحث
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In this paper, by using the tool of trinomial coefficients we study some determinant problems posed by Zhi-Wei Sun. For example, given any odd prime $p$ with $pequiv 2pmod 3$, we show that $2det[frac{1}{i^2-ij+j^2}]_{1le i,jle p-1}$ is a quadratic residue modulo $p$. This confirms a conjecture of Zhi-Wei Sun.



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