ball #99
Description
Section 5.1 in
Orthogonal polynomials of several variables
Y. Xu, 2017,
https://arxiv.org/pdf/1701.02709.pdf.
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Section 5.1 in
Orthogonal polynomials of several variables
Y. Xu, 2017,
https://arxiv.org/pdf/1701.02709.pdf.