Formula:KLS:14.04:25

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p n ( cos ( θ + ϕ ) ; a , 0 , 0 , a ; q ) ( q ; q ) n = P n ( cos ( θ + ϕ ) ; a | q ) continuous-q-Hahn-polynomial-p 𝑛 𝜃 italic-ϕ 𝑎 0 0 𝑎 𝑞 q-Pochhammer-symbol 𝑞 𝑞 𝑛 q-Meixner-Pollaczek-polynomial-P 𝑛 𝜃 italic-ϕ 𝑎 𝑞 {\displaystyle{\displaystyle{\displaystyle\frac{p_{n}\!\left(\cos\left(\theta+% \phi\right);a,0,0,a;q\right)}{\left(q;q\right)_{n}}=P_{n}\!\left(\cos\left(% \theta+\phi\right);a|q\right)}}}

Proof

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Symbols List

p n subscript 𝑝 𝑛 {\displaystyle{\displaystyle{\displaystyle p_{n}}}}  : continuous q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -Hahn polynomial : http://drmf.wmflabs.org/wiki/Definition:ctsqHahn
cos cos {\displaystyle{\displaystyle{\displaystyle\mathrm{cos}}}}  : cosine function : http://dlmf.nist.gov/4.14#E2
( 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
P n subscript 𝑃 𝑛 {\displaystyle{\displaystyle{\displaystyle P_{n}}}}  : q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -Meixner-Pollaczek polynomial : http://drmf.wmflabs.org/wiki/Definition:qMeixnerPollaczek

Bibliography

Equation in Section 14.4 of KLS.

URL links

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