Timeline for If $f$ is smooth and even then there exists a smooth function $g$ such that $f(x)=g(x^2)$
Current License: CC BY-SA 3.0
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| when toggle format | what | by | license | comment | |
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| Aug 24, 2020 at 19:56 | comment | added | LSpice | As a representation theorist, I love this answer. | |
| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Mar 25, 2013 at 19:50 | history | answered | Peter Michor | CC BY-SA 3.0 |