Formula:KLS:14.10:37

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C n ( x ; β | q ) = ( β ; q ) n ( q ; q ) n e i n θ \qHyperrphis 21 @ @ q - n , β β - 1 q - n + 1 q β - 1 q e - 2 i θ continuous-q-ultraspherical-Rogers-polynomial 𝑛 𝑥 𝛽 𝑞 q-Pochhammer-symbol 𝛽 𝑞 𝑛 q-Pochhammer-symbol 𝑞 𝑞 𝑛 imaginary-unit 𝑛 𝜃 \qHyperrphis 21 @ @ superscript 𝑞 𝑛 𝛽 superscript 𝛽 1 superscript 𝑞 𝑛 1 𝑞 superscript 𝛽 1 𝑞 2 imaginary-unit 𝜃 {\displaystyle{\displaystyle{\displaystyle C_{n}\!\left(x;\beta\,|\,q\right)=% \frac{\left(\beta;q\right)_{n}}{\left(q;q\right)_{n}}{\mathrm{e}^{\mathrm{i}n% \theta}}\,\qHyperrphis{2}{1}@@{q^{-n},\beta}{\beta^{-1}q^{-n+1}}{q}{\beta^{-1}% q{\mathrm{e}^{-2\mathrm{i}\theta}}}}}}

Proof

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Symbols List

C n subscript 𝐶 𝑛 {\displaystyle{\displaystyle{\displaystyle C_{n}}}}  : continuous q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -ultraspherical/Rogers polynomial : http://dlmf.nist.gov/18.28#E13
( 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
e e {\displaystyle{\displaystyle{\displaystyle\mathrm{e}}}}  : the base of the natural logarithm : http://dlmf.nist.gov/4.2.E11
i i {\displaystyle{\displaystyle{\displaystyle\mathrm{i}}}}  : imaginary unit : http://dlmf.nist.gov/1.9.i
ϕ s r subscript subscript italic-ϕ 𝑠 𝑟 {\displaystyle{\displaystyle{\displaystyle{{}_{r}\phi_{s}}}}}  : basic hypergeometric (or q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -hypergeometric) function : http://dlmf.nist.gov/17.4#E1

Bibliography

Equation in Section 14.10 of KLS.

URL links

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