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Equal sums of like polynomials

T. D. Browning

math.NTarXiv:math/0507541

Abstract

Let f be a polynomial of degree d>6, with integer coefficients. Then the paucity of non-trivial positive integer solutions to the equation f(a)+f(b)=f(c)+f(d) is established. The corresponding situation for equal sums of three like polynomials is also investigated.

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