Cesáro Means of N -multiple Trigonometric Fourier Series

نویسنده

  • USHANGI GOGINAVA
چکیده

Zhizhiashvili proved sufficient condition for the Cesáro summability by negative order of N-multiple trigonometric Fourier series in the space L, 1 ≤ p ≤ ∞. In this paper we show that this condition cannot be improved .

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تاریخ انتشار 2006