简介:  内容介绍 In Chapter I, an account is given of the systems of orthogonal functions normalized in a finite interval. Chapter II is concerned with the convergence problem of the classical Fourier series and its allied series. Chapter III is devoted to theory of absolute convergence of Fourier series. Chapter IV contains an exposition of the theory of summability |C,α| of positive order α for a Fourier series at a given point. The summability |C,α|, α<0, for a Fourier series at a given point is discussed in Chapter V. Chapter VI is devoted to the theory of absolute Cesàro summability of the allied series of a Fourier series. In Chapter VII, there will be found a discussion of the Cesàro summability of the series of hyperspherical functions. 网盘下载地址在1楼。 内容截图
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