Formula:KLS:14.12:40

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p n ( x | q ) = q \binomial n 2 ( 1 - q ) n ( q ; q ) n ( 𝒟 q - 1 ) n [ ( q x ; q ) n x n ] little-q-Legendre-polynomial-p 𝑛 𝑥 𝑞 superscript 𝑞 \binomial 𝑛 2 superscript 1 𝑞 𝑛 q-Pochhammer-symbol 𝑞 𝑞 𝑛 superscript subscript 𝒟 superscript 𝑞 1 𝑛 delimited-[] q-Pochhammer-symbol 𝑞 𝑥 𝑞 𝑛 superscript 𝑥 𝑛 {\displaystyle{\displaystyle{\displaystyle p_{n}\!\left(x|q\right)=\frac{q^{% \binomial{n}{2}}(1-q)^{n}}{\left(q;q\right)_{n}}\left(\mathcal{D}_{q^{-1}}% \right)^{n}\left[\left(qx;q\right)_{n}x^{n}\right]}}}

Proof

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Symbols List

p n subscript 𝑝 𝑛 {\displaystyle{\displaystyle{\displaystyle p_{n}}}}  : little q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -Legendre polynomial : http://drmf.wmflabs.org/wiki/Definition:littleqLegendre
( n k ) binomial 𝑛 𝑘 {\displaystyle{\displaystyle{\displaystyle\genfrac{(}{)}{0.0pt}{}{n}{k}}}}  : binomial coefficient : http://dlmf.nist.gov/1.2#E1 http://dlmf.nist.gov/26.3#SS1.p1
( a ; q ) n subscript 𝑎 𝑞 𝑛 {\displaystyle{\displaystyle{\displaystyle(a;q)_{n}}}}  : q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -Pochhammer symbol : http://dlmf.nist.gov/5.18#i http://dlmf.nist.gov/17.2#SS1.p1

Bibliography

Equation in Section 14.12 of KLS.

URL links

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