Exponential type functions are important subclasses of transcendental entire functions. In this paper, we will use some results given by Steinmetz (Manuscr Math 26:155–167, 1978) to consider the zeros of difference or differential-difference polynomials of exponential polynomials. In addition, we also consider the zeros of difference polynomials of exponential type functions with infinite order.

中文翻译：

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指数型函数的微分多项式的零分布

指数型函数是超越性整个函数的重要子类。在本文中，我们将使用Steinmetz（Manuscr Math 26：155–167，1978）给出的一些结果来考虑指数多项式的差分或微分差分多项式的零。另外，我们还考虑了无限次指数型函数的差分多项式的零点。