In this paper, firstly we have improved a known theorem of Mazhar under weaker conditions and then we obtained an application of it to the trigonometric Fourier series. Some new results are also obtained.

中文翻译：

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涉及几乎增加的序列的因式无限级数和傅立叶级数

在本文中，首先我们改进了弱条件下的Mazhar已知定理，然后将其应用于三角傅里叶级数。还获得了一些新结果。