Author： Ditzian Zeev
Publisher： Springer Publishing Company
ISSN： 0236-5294
Source： Acta Mathematica Hungarica, Vol.102, Iss.1-2, 2004-01, pp. : 1-36
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Abstract
In a recent paper, I introduced new moduli of smoothness for functions on the sphere which did not use averages and, as a result, had some interesting properties. The direct, Jackson-type, estimate of the best approximation by spherical harmonics using the new moduli will be proved here. Equivalence with the appropriate
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