Formula:KLS:09.01:04
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Failed to parse (LaTeXML (experimental; uses MathML): Invalid response ("") from server "http://latexml:8080/convert/":): {\displaystyle {\displaystyle \frac{1}{2\cpi}\int_0^{\infty}\left|\frac{\EulerGamma@{a+\iunit x}\EulerGamma@{b+\iunit x}\EulerGamma@{c+\iunit x}\EulerGamma@{d+\iunit x}}{\EulerGamma@{2\iunit x}}\right|^2 {} \Wilson{m}@{x^2}{a}{b}{c}{d}\Wilson{n}@{x^2}{a}{b}{c}{d}\,dx {}+\frac{\EulerGamma@{a+b}\EulerGamma@{a+c}\EulerGamma@{a+d}\EulerGamma@{b-a}\EulerGamma@{c-a}\EulerGamma@{d-a}}{\EulerGamma@{-2a}} {}\sum_{\begin{array}{c} {\scriptstyle k=0,1,2\ldots}\\ {\scriptstyle a+k<0}\end{array}} \frac{\pochhammer{2a}{k}\pochhammer{a+1}{k}\pochhammer{a+b}{k}\pochhammer{a+c}{k}\pochhammer{a+d}{k}}{\pochhammer{a}{k}\pochhammer{a-b+1}{k}\pochhammer{a-c+1}{k}\pochhammer{a-d+1}{k}k!} {} \Wilson{m}@{-(a+k)^2}{a}{b}{c}{d}\Wilson{n}@{-(a+k)^2}{a}{b}{c}{d} {}=\frac{\EulerGamma@{n+a+b}\cdots\EulerGamma@{n+c+d}}{\EulerGamma@{2n+a+b+c+d}}\pochhammer{n+a+b+c+d-1}{n}n!\,\Kronecker{m}{n} }}
Proof
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Symbols List
: integral : http://dlmf.nist.gov/1.4#iv
: Euler's gamma function : http://dlmf.nist.gov/5.2#E1
: imaginary unit : http://dlmf.nist.gov/1.9.i
: Wilson polynomial : http://dlmf.nist.gov/18.25#T1.t1.r2
: sum : http://drmf.wmflabs.org/wiki/Definition:sum
: Pochhammer symbol : http://dlmf.nist.gov/5.2#iii
: Kronecker delta : http://dlmf.nist.gov/front/introduction#Sx4.p1.t1.r4
Bibliography
Equation in Section 9.1 of KLS.
URL links
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