Exceptional sets in Waring's problem: two squares and s biquadrates

Lilu Zhao

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arXiv · 1402.3039

Exceptional sets in Waring's problem: two squares and s biquadrates

Lilu Zhao

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Abstract

Let $R_s(n)$ denote the number of representations of the positive number $n$ as the sum of two squares and $s$ biquadrates. When $s=3$ or $4$, it is established that the anticipated asymptotic formula for $R_s(n)$ holds for all $n\le X$ with at most $O(X^{(9-2s)/8+\varepsilon})$ exceptions.

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Lilu Zhao. 2014-02-13. Exceptional sets in Waring's problem: two squares and s biquadrates. https://arxiv.org/abs/1402.3039

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