Geodesic
A Note on Convergence of Fourier Series of a Function on Wiener's Class Vp
Canadian mathematical bulletin, Tome 20 (1977) no. 2, pp. 243-247

Voir la notice de l'article provenant de la source Cambridge University Press

Let f be a 2π-periodic function defined on [0, 2π]. We set where suprema have been taken with respect to all partitions P:a = t0<t1<t2<...<tn<=b of any segment [a, b] contained in [0, 2π]. We call the pth total variation of f on [a, b]. If we denote pth total variaiton of f on [0, 2π] by Vp (f), then we can define Wiener's class simply by 
Siddiqi, Rafat N. A Note on Convergence of Fourier Series of a Function on Wiener's Class Vp. Canadian mathematical bulletin, Tome 20 (1977) no. 2, pp. 243-247. doi: 10.4153/CMB-1977-037-x
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