sum of generalized harmonic numbers

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For $\alpha>0$, let \begin{equation*} H_m^{(\alpha)}=\sum_{k=1}^m\frac{1}{k^{\alpha}} \end{equation*} What is $ \sum_{m=1}^n H_m^{(\alpha)} ? $ Does simply identity exist?

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It's $$\sum_{m=1}^{n} H_{m}^{(\alpha)}=\sum_{k=1}^{n}\frac{n-k+1}{k^\alpha} = (n+1)H_n^{(\alpha)}-H_{n}^{(\alpha-1)}$$