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arXiv 1610.09830math.NT
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有三个非零数字的平方

Squares with three nonzero digits

Michael A. Bennett, Adrian-Maria Scheerer

摘要:

我们确定所有整数$n$,使得$n^2$对于$q \in \{2, 3, 4, 5, 8, 16 \}$最多有三个基- $q$数字。更一般地说,我们表明,所有的解决方案方程的形状$$ Y^2 = t^2 + M \cdot q^m + N \cdot q^n, $$,其中$q$是一个奇素数,$n > m > 0$和$t^2, |M|, N < q$,无论是从“明显的”多项式家庭或满足$m \leq 3$。我们的论点依赖于二项函数的Padé逼近,认为是$q$ -adically。

英文摘要:

We determine all integers $n$ such that $n^2$ has at most three base-$q$ digits for $q \in \{2, 3, 4, 5, 8, 16 \}$. More generally, we show that all solutions to equations of the shape $$ Y^2 = t^2 + M \cdot q^m + N \cdot q^n, $$ where $q$ is an odd prime, $n > m > 0$ and $t^2, |M|, N < q$, either arise from "obvious" polynomial families or satisfy $m \leq 3$. Our arguments rely upon Padé approximants to the binomial function, considered $q$-adically.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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