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which values for 'a' will make series convergent or divergent? \begin{eqnarray*} {\displaystyle\sum_{k=1}^{\infty} } \ & & \frac{1}{(2k+1)ln^a(2k+1)}\ \end{eqnarray*}

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I vote for closing, since it looks so much like a "Do my homework" question! (and I downvoted) – Julien Puydt May 15 2011 at 13:48
@skyzer: MO is the best place to ask this question, since we tend to deal with research-level questions only. I suggest trying on math.stackexchange.com . The FAQ contains other suggestions of alternative places to ask. – Thierry Zell May 15 2011 at 13:52
okay, thanks. sorry for causing a mess. – skyzer May 15 2011 at 13:54
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Presumably Thierry meant "MO is not..." – Qiaochu Yuan May 15 2011 at 13:59
Indeed, thanks Qiaochu! – Thierry Zell May 17 2011 at 13:39

closed as off topic by Qiaochu Yuan, Andres Caicedo, Tony Huynh, Didier Piau, fedja May 15 2011 at 14:48

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