Formula:KLS:14.03:09

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2 x p ~ n ( x ) = A n p ~ n + 1 ( x ) + [ a + a - 1 - ( A n + C n ) ] p ~ n ( x ) + C n p ~ n - 1 ( x ) 2 𝑥 continuous-dual-q-Hahn-polynomial-normalized-p-tilde 𝑛 𝑥 𝑎 𝑏 𝑐 𝑞 subscript 𝐴 𝑛 continuous-dual-q-Hahn-polynomial-normalized-p-tilde 𝑛 1 𝑥 𝑎 𝑏 𝑐 𝑞 delimited-[] 𝑎 superscript 𝑎 1 subscript 𝐴 𝑛 subscript 𝐶 𝑛 continuous-dual-q-Hahn-polynomial-normalized-p-tilde 𝑛 𝑥 𝑎 𝑏 𝑐 𝑞 subscript 𝐶 𝑛 continuous-dual-q-Hahn-polynomial-normalized-p-tilde 𝑛 1 𝑥 𝑎 𝑏 𝑐 𝑞 {\displaystyle{\displaystyle{\displaystyle 2x{\tilde{p}}_{n}\!\left(x\right)=A% _{n}{\tilde{p}}_{n+1}\!\left(x\right)+\left[a+a^{-1}-\left(A_{n}+C_{n}\right)% \right]{\tilde{p}}_{n}\!\left(x\right)+C_{n}{\tilde{p}}_{n-1}\!\left(x\right)}}}

Substitution(s)

C n = a ( 1 - q n ) ( 1 - b c q n - 1 ) subscript 𝐶 𝑛 𝑎 1 superscript 𝑞 𝑛 1 𝑏 𝑐 superscript 𝑞 𝑛 1 {\displaystyle{\displaystyle{\displaystyle C_{n}=a(1-q^{n})(1-bcq^{n-1})}}} &
A n = a - 1 ( 1 - a b q n ) ( 1 - a c q n ) subscript 𝐴 𝑛 superscript 𝑎 1 1 𝑎 𝑏 superscript 𝑞 𝑛 1 𝑎 𝑐 superscript 𝑞 𝑛 {\displaystyle{\displaystyle{\displaystyle A_{n}=a^{-1}(1-abq^{n})(1-acq^{n})}}}


Proof

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Symbols List

& : logical and
p ~ n subscript ~ 𝑝 𝑛 {\displaystyle{\displaystyle{\displaystyle{\tilde{p}}_{n}}}}  : normalized continuous dual q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -Hahn polynomial p ~ ~ 𝑝 {\displaystyle{\displaystyle{\displaystyle{\tilde{p}}}}}  : http://drmf.wmflabs.org/wiki/Definition:normctsdualqHahnptilde

Bibliography

Equation in Section 14.3 of KLS.

URL links

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