K. Ishizaki

activity

20172023

most citedDual exponential polynomials and a problem of Ozawa

3 citations · 4 across the 7 of their papers we have counts for

collaborators

Showing 2019Show all

2 papers · 1 filter

math.CV2019

Binomial series and complex difference equations

Katsuya Ishizaki, Zhi-Tao Wen

We consider properties of binomial series $\sum_{n = 0}^{\infty} a_{n} z^{n}$ , where $z^{n} = z (z - 1) \dots (z - n + 1)$ and the convergence of binomial series in the com…

math.CV2019

Exponential polynomials in the oscillation theory

Janne Heittokangas, Katsuya Ishizaki, Ilpo Laine +1

Supposing that $A (z)$ is an exponential polynomial of the form $A (z) = H_{0} (z) + H_{1} (z) e^{ζ_{1} z^{n}} + \dots + H_{m} (z) e^{ζ_{m} z^{n}},$ where $H_{j}$ 's are entire and of order $< n$ , it is demons…