摘要：
Let $H=\{1,5,9,\cdots\}$ be the arithmetic progression of all positiveintegers of the form $4k+1$.Elements of $H$ are called Hilbertnumbers.Show that ... 阅读全文
posted @ 2012-12-01 03:24
叶卢庆
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摘要：
Let $H=\{1,5,9,\cdots\}$ be the arithmetic progression of all positiveintegers of the form $4k+1$.Elements of $H$ are called Hilbertnumbers.Show that ... 阅读全文
posted @ 2012-12-01 03:24
叶卢庆
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摘要：
For $n\geq 2$,the rational number \begin{equation}\label{eq:343242} 1+\frac{1}{2}+\frac{1}{3}+\cdots+\frac{1}{n} \end{equation}is not an integer.... 阅读全文
posted @ 2012-12-01 01:36
叶卢庆
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摘要：
For $n\geq 2$,the rational number \begin{equation}\label{eq:343242} 1+\frac{1}{2}+\frac{1}{3}+\cdots+\frac{1}{n} \end{equation}is not an integer.... 阅读全文
posted @ 2012-12-01 01:36
叶卢庆
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