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arXiv 1808.06145math.NT
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关于二元二次多项式表示的自然数的一些结果

Some results on natural numbers represented by quadratic polynomials in two variables

B. M. Cerna Maguiña, H. Blas, V. H. López Solís

摘要:

我们考虑一组形式为$p_j (x,y) = (10 x+m_j)(10 y + n_j),\,\,x\geq 0, y\geq0$,$j=1,2,3$的方程,使得$\{m_1=7, n_1=3\}$,$\{m_2=n_2=9\}$和$\{m_3=n_3=1\}$分别成立.证明了若$(a(p_j),b(p_j)) \in N \times N$是$j'$方程的解,则有不等式$\frac{p_j}{100}\leq A(p_j) B(p_j) \leq \frac{121}{10^4} p_j$,其中$A(p_j)\equiv a(p_j)+1, B(p_j)\equiv b(p_j)+1\,$和$p_{j}$是以1结尾的自然数,使得$\{A(p_1)\geq 4, B(p_1)\geq 8\}$,$\{A(p_2) \geq 2, B(p_2)\geq 2\}$和$\{A(p_3) \geq 10, B(p_3)\geq 10\}$分别成立.此外,假设前面的结果,我们表明,$1\leq ( \frac{A(p_j+10) B(p_j+10)}{A(p_j) B(p_j)})^{1/100} \leq e^{0,000201} x (1+ \frac{10}{p_j})^{(0,101)^2}$,与$\{A(p_1)\geq 31, B(p_1)\geq 71\}$,$\{A(p_2) \geq 11, B(p_2)\geq 11\}$,和$\{A(p_3) \geq 91, B(p_3)\geq 91\}$,分别。最后,我们提出了相关的正整数解的方程定义的$p_j = (10 A+m_j)(10 B + n_j)$,为每种情况$j=1,2,3$,分别的上限和下限。

英文摘要:

We consider a set of equations of the form $p_j (x,y) = (10 x+m_j)(10 y + n_j),\,\,x\geq 0, y\geq0$, $j=1,2,3$, such that $\{m_1=7, n_1=3\}$, $\{m_2=n_2=9\}$ and $\{m_3=n_3=1\}$, respectively. It is shown that if $(a(p_j),b(p_j)) \in N \times N$ is a solution of the $j'$th equation one has the inequality $\frac{p_j}{100}\leq A(p_j) B(p_j) \leq \frac{121}{10^4} p_j$, where $A(p_j)\equiv a(p_j)+1, B(p_j)\equiv b(p_j)+1\,$ and $p_{j}$ is a natural number ending in 1, such that $\{A(p_1)\geq 4, B(p_1)\geq 8\}$, $\{A(p_2) \geq 2, B(p_2)\geq 2\}$, and $\{A(p_3) \geq 10, B(p_3)\geq 10\}$ hold, respectively. Moreover, assuming the previous result we show that $1\leq ( \frac{A(p_j+10) B(p_j+10)}{A(p_j) B(p_j)})^{1/100} \leq e^{0,000201} x (1+ \frac{10}{p_j})^{(0,101)^2}$, with $\{A(p_1)\geq 31, B(p_1)\geq 71\}$, $\{A(p_2) \geq 11, B(p_2)\geq 11\}$, and $\{A(p_3) \geq 91, B(p_3)\geq 91\}$, respectively. Finally, we present upper and lower bounds for the relevant positive integer solution of the equation defined by $p_j = (10 A+m_j)(10 B + n_j)$, for each case $j=1,2,3$, respectively.

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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