Abstract
We consider absolute convergence of multiple series of Fourier-Haar coefficients for functions of many variables with partial derivatives of higher order. We show that the obtained results are best possible for general orthonormal systems.
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Original Russian Text © L.D. Gogoladze, V.Sh. Tsagareishvili, 2015, published in Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika, 2015, No. 9, pp. 12–21.
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Gogoladze, L.D., Tsagareishvili, V.S. On absolute convergence of multiple Fourier series. Russ Math. 59, 9–17 (2015). https://doi.org/10.3103/S1066369X15090029
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DOI: https://doi.org/10.3103/S1066369X15090029