On quadratic character sums of multivariate symmetric polynomials modulo p

Shaofan Cao , Tingting Wang

Electronic Research Archive ›› 2025, Vol. 33 ›› Issue (12) : 7491 -7508.

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Electronic Research Archive ›› 2025, Vol. 33 ›› Issue (12) :7491 -7508. DOI: 10.3934/era.2025330
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On quadratic character sums of multivariate symmetric polynomials modulo p
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Abstract

In this paper, we use the elementary and analytic methods to investigate the computational problem of quadratic character sums related to quaternary and quintuple symmetric polynomials modulo a prime p, respectively. By applying properties of Gauss sums and those of third-order characters modulo p, we establish some identities for such quadratic character sums in the cases of (3, p − 1) = 1 and (3, p − 1) = 3.

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quadratic character sums / classical Gauss sums / multivariate symmetric polynomials / third-order characters

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Shaofan Cao, Tingting Wang. On quadratic character sums of multivariate symmetric polynomials modulo p. Electronic Research Archive, 2025, 33 (12) : 7491-7508 DOI:10.3934/era.2025330

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