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 Asymptotic behavior of the inverse of tails of Hurwitz zeta function J. Korean Math. Soc.Published online June 1, 2020 Ho-Hyeong Lee and Jong-Do Park Kyung Hee University Abstract : This paper deals with the inverse of tails of Hurwitz zeta function. More precisely, for any positive integer $s\geq2$, we give an algorithm for finding a simple form of $f_s(n)$ such that $$\lim_{n\rightarrow\infty}\left\{\left(\sum^\infty_{k=n}\frac{1}{(k+a)^s}\right)^{-1}-f_s(n)\right\}=0.$$ We show that $f_s(n)$ is a polynomial in $n-a$ of order $s-1$. All coefficients of $f_s(n)$ are represented in terms of Bernoulli numbers. Keywords : Hurwitz zeta function, Riemann zeta function, Gamma function, Bernoulli number, convergent series MSC numbers : 33B15, 11M35, 11B68 Full-Text :