Timeline for Uniqueness in Composition of Polynomials
Current License: CC BY-SA 2.5
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 24, 2010 at 20:45 | comment | added | Sergei Ivanov | I added an example where all coefficients are positive. | |
| Mar 24, 2010 at 20:43 | history | edited | Sergei Ivanov | CC BY-SA 2.5 |
added example with all coefficients positive
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| Mar 24, 2010 at 19:25 | comment | added | Sergei Ivanov | $f(x)=2x+1$ does. | |
| Mar 24, 2010 at 19:19 | comment | added | darij grinberg | This was basically said in the comments to the question. $f$ must send $\left[0,\infty\right)$ to a proper subset of $\left[0,\infty\right)$. | |
| Mar 24, 2010 at 19:19 | comment | added | Michael Lugo | Perhaps one needs the condition that $f$ and $g$ have nonzero constant term. | |
| Mar 24, 2010 at 18:56 | history | edited | Sergei Ivanov | CC BY-SA 2.5 |
deleted 26 characters in body
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| Mar 24, 2010 at 18:51 | history | answered | Sergei Ivanov | CC BY-SA 2.5 |