On some properties of double conjugate trigonometric Fourier series

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On a general class of trigonometric functions and Fourier series

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Asymptotic estimates for the best trigonometric and bilinear approximations of classes of functions of several variables

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Gap series and functions of bounded variation

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Acta Mathematica Hungarica, Vol. 110, Iss. 3, 2006-02 ,pp. : 175-191

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Estimates of the Best M-Term Trigonometric Approximations of the Classes L, p of Periodic Functions of Many Variables in the Space Lq

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