Is in general the log of an arbitrary function a convex function?
If yes, give me explicit results or any paper or book that answer this question.
Thanks,
Farzali
Is in general the log of an arbitrary function a convex function?
If yes, give me explicit results or any paper or book that answer this question.
Thanks,
Farzali
No. log(x)
is concave, and is not convex. That is a rather simple counterexample.
log(f(x))
is concave if f(x)
is concave.