Timeline for Derivative of Band-limited functions
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Jul 19, 2015 at 20:47 | history | edited | Alexandre Eremenko | CC BY-SA 3.0 |
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| Jul 19, 2015 at 13:08 | comment | added | Ron | I think the derivative of f(x) result with $2\pi$ inside the parentheses of the middle term of the inequality (See also answer by Josep) | |
| Jul 19, 2015 at 7:13 | comment | added | Ron | Isn't there a $(2\pi)^2$ missing? | |
| Jul 18, 2015 at 19:01 | history | edited | Alexandre Eremenko | CC BY-SA 3.0 |
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| Jul 18, 2015 at 18:59 | comment | added | Alexandre Eremenko | The inequality comes from the Cauchy inequality. Equality holds when the functions are equal. So take $g(t)=t$. | |
| Jul 18, 2015 at 13:45 | comment | added | Ron | Could you think of a function that satisfy the equality (that is, has the maximum-possible derivative value)? | |
| Jul 18, 2015 at 12:56 | vote | accept | Ron | ||
| Jul 18, 2015 at 12:36 | history | answered | Alexandre Eremenko | CC BY-SA 3.0 |