Timeline for A proposition about power series
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| Feb 20, 2020 at 9:45 | review | First posts | |||
| Feb 20, 2020 at 13:38 | |||||
| Feb 20, 2020 at 9:44 | vote | accept | Burnie | ||
| Feb 17, 2020 at 23:18 | comment | added | GH from MO | It does not makes sense to assume that $p'(x)$ does not exist. If $p(x)$ converges in $(0,1)$, then the function defined by it is infinitely many times differentiable in $(0,1)$. In fact $p(x)$ extends holomorphically to the unit disk $\{z\in\mathbb{C}:|z|<1\}$. This is one of the basic theorems in complex analysis. See en.wikipedia.org/wiki/… See also my last comment under my response. | |
| Feb 14, 2020 at 15:11 | comment | added | Mateusz Kwaśnicki | What is $C$ supposed to depend on? As stated, $C$ may depend on $(a_n)$, $a$ and $\delta$, in which case such $C$ obviously exists. | |
| Feb 14, 2020 at 15:09 | history | edited | Burnie | CC BY-SA 4.0 |
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| Feb 14, 2020 at 14:03 | history | edited | GH from MO |
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| Feb 14, 2020 at 14:03 | answer | added | GH from MO | timeline score: 1 | |
| Feb 14, 2020 at 13:56 | history | edited | Burnie | CC BY-SA 4.0 |
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| Feb 14, 2020 at 13:49 | history | edited | Burnie | CC BY-SA 4.0 |
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| Feb 14, 2020 at 13:33 | history | asked | Burnie | CC BY-SA 4.0 |