Abstract
In this article, we are using the elementary methods and the properties of the classical Gauss sums to study the calculating problem of a certain quadratic character sums of a ternary symmetry polynomials modulo p and obtain some interesting identities for them.
Highlights
Let p be an odd prime, (∗/p) denotes the Legendre symbol mod p, i.e., for any integer n, one has n ⎧⎪⎪⎪⎪⎨ 1, if n is a quadratic residue mod p, p ⎪⎪⎪⎪⎩−1, if n is a quadratic nonresidue mod p, (1) 0, if p | n.Some of the most commonly used properties of the Legendre symbol are as follows: −1 p (−1)(p− 1)/2,2 (−1)(p2− 1)/8
We have not found the representations of d and b or x and y in terms of the Legendre symbol modulo p, we found that a certain quadratic character sum of the ternary symmetry polynomials are closely related to the numbers d and b
If p is an odd prime with p ≡ 1mod6, if 2 is not a cubic resipad −u11epb −m11 opc d−11uloa4pb,c we have + b4ac + c4ab p
Summary
Let p be an odd prime, (∗/p) denotes the Legendre symbol mod p, i.e., for any integer n, one has n ⎧⎪⎪⎪⎪⎨ 1, if n is a quadratic residue mod p,. We shall use elementary methods and the properties of the classical Gauss sums to study the calculating problem of a certain quadratic character sum of binary symmetry polynomials modulo p and obtain several interesting identities for them. If 2 is not a cubic residue modulo p, we have the identity p−1 p−1 p−1 a4bc + b4ac + c4ab + abc. From these theorems, we may immediately deduce the following three corollaries. If p is an odd prime with p ≡ 1mod, if 2 is not a cubic resipad −u11epb −m11 opc d−11uloa4pb,c we have + b4ac + c4ab p. Interested readers are encouraged to join us in the research
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