Browsing University Publications by Author "Ali, Ziad"
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A Note on Norland Summability of Fourier Series
Ali, Ziad Rushdi; علي, زياد رشدي ( Qatar University , 1982 , Article)In this paper we consider point-wise summability in the Norlund sense of Fourier series by assuming H(n) . F(n) = o (Pn) as n--+ oo, where (H(x) = d.x g(t) dt, g(t) is continuous, non-increasing, H(x) is slowly varying, ... -
Point-Wise Summability Of Fourier Series And Its Related Series In The Norlund Sense
Ali, Ziad Rushdi ( Qatar University , 1985 , Article)In this note we consider the point-wise summability of Fourier series in the Norlund sense by extending a theorem of Lebesgue [ 6 ] . We also consider analogous theorems of our extension to derived Fourier series, and ... -
A Short Note On The Point-Wise Summability Of The Conjugate Series Of A Fourier Series In The Norlund Sense
Ali, Ziad Rushdi ( Qatar University , 1985 , Article)In this note we consider an analogous theorem of [l] in the sense of point-wise summability of the conjugate series of a Fourier series in the Norlund sense