Can we do Weierstrass factorization for trigonometric substitutions? If so, in which cases?

48 Views Asked by At

We have in complex analysis the famous Weierstrass factorization theorem which says that every entire function can be written

$$f(z) = z^ne^{g(z)}\prod_{k=0}^\infty E_{p_n} \left(\frac{z}{a_n}\right)$$

Now to the question, what happens if we do $z=\sin(w)$ or maybe $z = \exp(iw)$?

Will this still be able to represent something useful?