Timeline for An inequality on concave functions
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 30, 2011 at 14:26 | comment | added | user11870 | The positivity of $f$ is just for the domain of the $\log$ function. | |
| May 30, 2011 at 9:47 | comment | added | anonymous | I meant that positivity of $f$ does not help in determining whether or not $log \circ f$ is concave. My answer should've been a reply to wmmiao's answer of course but I lack the permission to reply. | |
| May 29, 2011 at 20:42 | comment | added | Michael Renardy | When you divide the inequality by f(x) or f(tx), it comes in handy. | |
| May 29, 2011 at 18:37 | history | answered | anonymous | CC BY-SA 3.0 |