Abstract
Dunkl h-harmonics are defined as homogeneous polynomials satisfying the Dunkl Laplacian equation. They are defined and studied in Section 3.1. Projection operators and orthogonal expansions in spherical h-harmonics are studied in Section 3.2, which includes a concise expression for the reproducing kernel of the spherical h-harmonics. This expression is an analog of the zonal harmonics, which suggests a definition of a convolution operator, defined in Section 3.3 and it helps us to study various summability methods for spherical h-harmonic expansions.
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Dai, F., Xu, Y. (2015). h-Harmonics and Analysis on the Sphere. In: Tikhonov, S. (eds) Analysis on h-Harmonics and Dunkl Transforms. Advanced Courses in Mathematics - CRM Barcelona. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-0887-3_3
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DOI: https://doi.org/10.1007/978-3-0348-0887-3_3
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Publisher Name: Birkhäuser, Basel
Print ISBN: 978-3-0348-0886-6
Online ISBN: 978-3-0348-0887-3
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