TY - JOUR AU - T. B. Cao AU - K. Liu AU - X. L. Liu PY - 2017/01/25 Y2 - 2024/03/29 TI - The properties on differential-difference polynomials JF - Ukrains’kyi Matematychnyi Zhurnal JA - Ukr. Mat. Zhurn. VL - 69 IS - 1 SE - Research articles DO - UR - https://umj.imath.kiev.ua/index.php/umj/article/view/1676 AB - The main aim of this paper is to improve some classical results on the distribution of zeros for differential polynomials anddifferential-difference polynomials. We present some results on the distribution of zeros of $[f(z)^nf(z + c)]^{(k)} \alpha (z)$ and$[f(z)^n(f(z + c) f(z))]^{(k)} \alpha (z)$ and give some examples to show that the results are best possible in a certain sense. ER -