A note on difference sets and the irreducibles in function fields
Let Fq denote the finite field of q elements,r∈Fq\{0},A哿Fq[t]is a set containing some polynomials of degree less than N.When the difference set A-A does not contain any element of the form ω + r,where ω is a monic irreducible polynomial in Fq[t],on the basis of iterative sequence,the range of relevant parameter is determined by the function property,thus the size of A is estimated.
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