f is an entire function, suppose $|f(z^{2})| \leq 2|f(z)|$ for all C, then f is a constant.
I 'm trying to use Liouville's theorem, but it seems that it isn't helpful.
f is an entire function, suppose $|f(z^{2})| \leq 2|f(z)|$ for all C, then f is a constant.
I 'm trying to use Liouville's theorem, but it seems that it isn't helpful.