Formula:KLS:14.19:25

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P n ( cos ( θ + ϕ ) ; q 1 2 α + 1 2 | q ) = q - ( 1 2 α + 1 4 ) n P n ( α ) ( cos θ | q ) q-Meixner-Pollaczek-polynomial-P 𝑛 𝜃 italic-ϕ superscript 𝑞 1 2 𝛼 1 2 𝑞 superscript 𝑞 1 2 𝛼 1 4 𝑛 continuous-q-Laguerre-polynomial-P 𝛼 𝑛 𝜃 𝑞 {\displaystyle{\displaystyle{\displaystyle P_{n}\!\left(\cos\left(\theta+\phi% \right);q^{\frac{1}{2}\alpha+\frac{1}{2}}|q\right)=q^{-(\frac{1}{2}\alpha+% \frac{1}{4})n}P^{(\alpha)}_{n}\!\left(\cos\theta|q\right)}}}

Proof

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Symbols List

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
cos cos {\displaystyle{\displaystyle{\displaystyle\mathrm{cos}}}}  : cosine function : http://dlmf.nist.gov/4.14#E2
P α ( n ) subscript superscript 𝑃 𝑛 𝛼 {\displaystyle{\displaystyle{\displaystyle P^{(n)}_{\alpha}}}}  : continuous q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -Laguerre polynomial : http://drmf.wmflabs.org/wiki/Definition:ctsqLaguerre

Bibliography

Equation in Section 14.19 of KLS.

URL links

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