Is there a closed form for the quadruple inner product of Legendre Polynomials such as:
\begin{align} \int_{-1}^{1}P_k(x)P_l(x)P_m(x)P_n(x)dx \end{align}
I am aware of solutions for the triple inner product for Legendre Polynomials.
2026-03-28 15:26:22.1774711582
Inner product of 4 Legendre Polynomials
112 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in CLOSED-FORM
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