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# Questions

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### If $f$ is infinitely differentiable then $f$ coincides with a polynomial

feb 2 at 10:46 i707107 79438

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### Example of an infinite abelian but non-cyclic group whose automorphism group is cyclic.

jan 10 at 11:03 Adam Przezdziecki 16613

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### Request for the proof of a result from Ramanujan’s letter to Hardy.

jul 4 at 10:55 Chandrasekhar 2,01011127

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### Why is this theorem attributed to Serre?

jun 22 at 8:07 Chandrasekhar 2,01011127

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### Doubt in the proof of $\lim_{s \to 1^{+}} L(s,\chi) = L(1,\chi)$

feb 20 12 at 19:41 GH 14.9k13153

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### Transcendence of PI

dec 14 11 at 6:02 Iyer 1

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### Idea behind choosing $\small f(x)$ as $c^{s}x^{p-1} \frac{[\theta(x)]^{p}}{(p-1)!}$ in the proof that $\pi$ is transcendental.

oct 14 11 at 22:36 Chandrasekhar 2,01011127

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### Example of a Group which has $\text{SL}_{n}(\mathbb{Z})$ as the automorphism group

oct 9 11 at 10:31 Chandrasekhar 2,01011127

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### Ramanujan’s eccentric Integral formula

jul 30 11 at 11:09 Chandrasekhar 2,01011127

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