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On the convergence of double trigonometric series and Fourier series with monotone coefficients. (English. Russian original) Zbl 0654.42017
Math. USSR, Sb. 57, 57-75 (1987); translation from Mat. Sb., Nov. Ser. 129(171), No. 1, 55-72 (1986).
The author considers different conditions on the coefficients of double Fourier series which lead to the Fourier series of functions $$f\in L_ p(0,2\pi)$$ 2 or to the convergence series. He shows that some of these results cannot be improved.
Reviewer: W.Lenski

##### MSC:
 42B05 Fourier series and coefficients in several variables
##### Keywords:
coefficients of double Fourier series
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