Rong Ma

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20242026

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math.NT2026

Waring's problem involving D.H. Lehmer numbers

Yang Qu, Rong Ma

For every positive integer $a$ which is coprime with $p$ , $p$ is an odd prime, we denote by $a$ the unique integer satisfying $1 \leq a \leq p$ and $a\overline{…

math.NT2026

Sums of eight fourth power of primes

Yang Qu, Rong Ma

For any sufficiently large $ℓ$ , suppose that $ℓ$ can be expressed as $ℓ = p_{1}^{4} + p_{2}^{4} + p_{3}^{4} + \dots + p_{8}^{4},$ where $p_{1}, p_{2}, p_{3}, \dots, p_{8}$ are primes.For such $ℓ$ ,…