The paper introduces the notion of a new product summability method, which is obtained by superimposing the Zweier method on the Euler method. This method is applied to obtain the degree of approximation of Fourier series of signals (functions) belonging to certain Lipschitz classes.

中文翻译：

---

傅立叶级数的Zweier-Euler乘积和方法在某些Lipschitz类中的信号逼近度

本文介绍了一种新产品可积性方法的概念，该方法是通过将Zweier方法叠加在Euler方法上而获得的。该方法用于获得属于某些Lipschitz类的信号（函数）傅里叶级数的逼近度。