Let be an entire function of exponential type , and let s,t>0, . Can we always find entire functions of exponential types such that ?

Factorization of entire functions – mathoverflow.net
Christian Remling

Let f(z) be an entire function of exponential type 1, and let s,t>0, s+t=1. Can we always find entire functions g,h of exponential types s,t such that f=gh ?