Formula:KLS:14.08:34

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Q n ( 1 2 ( a q - x + a - 1 q x ) ; a , b ; q - 1 ) = ( - a b - 1 ) x q - 1 2 x ( x + 1 ) ( q b a - 1 ; q ) x ( a - 1 b - 1 ; q ) x \qHyperrphis 21 @ @ q - x , a - 2 q x q b a - 1 q q n + 1 Al-Salam-Chihara-polynomial-Q 𝑛 1 2 𝑎 superscript 𝑞 𝑥 superscript 𝑎 1 superscript 𝑞 𝑥 𝑎 𝑏 superscript 𝑞 1 superscript 𝑎 superscript 𝑏 1 𝑥 superscript 𝑞 1 2 𝑥 𝑥 1 q-Pochhammer-symbol 𝑞 𝑏 superscript 𝑎 1 𝑞 𝑥 q-Pochhammer-symbol superscript 𝑎 1 superscript 𝑏 1 𝑞 𝑥 \qHyperrphis 21 @ @ superscript 𝑞 𝑥 superscript 𝑎 2 superscript 𝑞 𝑥 𝑞 𝑏 superscript 𝑎 1 𝑞 superscript 𝑞 𝑛 1 {\displaystyle{\displaystyle{\displaystyle Q_{n}\!\left(\frac{1}{2}(aq^{-x}+a^% {-1}q^{x});a,b\,;\,q^{-1}\right)=(-ab^{-1})^{x}q^{-\frac{1}{2}x(x+1)}\frac{% \left(qba^{-1};q\right)_{x}}{\left(a^{-1}b^{-1};q\right)_{x}}\qHyperrphis{2}{1% }@@{q^{-x},a^{-2}q^{x}}{qba^{-1}}{q}{q^{n+1}}}}}

Proof

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Symbols List

Q n subscript 𝑄 𝑛 {\displaystyle{\displaystyle{\displaystyle Q_{n}}}}  : q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -inverse Al-Salam-Chihara polynomial : http://dlmf.nist.gov/23.1
( 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
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 14.8 of KLS.

URL links

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