Abstract
Let (X, F, μ) be a positive measure space, {ϕi (x): i= 0, 1, …} an orthonormal system (in abbreviation: ONS) defined on X, and {ai} a sequence of real numbers (coefficients).
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© 1985 Birkhäuser Verlag Basel
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Móricz, F. (1985). Square Functions in the Theory of Cesàro Summability of Double Orthogonal Series. In: Schempp, W., Zeller, K. (eds) Multivariate Approximation Theory III. International Series of Numerical Mathematics, vol 75. Birkhäuser Basel. https://doi.org/10.1007/978-3-0348-9321-3_29
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DOI: https://doi.org/10.1007/978-3-0348-9321-3_29
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