Formula:KLS:01.13:15

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\qHyperrphis 21 @ @ q - n , b c q z = ( b ; q ) n ( c ; q ) n q - n - \binomial n 2 ( - z ) n \qHyperrphis 21 @ @ q - n , c - 1 q 1 - n b - 1 q 1 - n q c q n + 1 b z formulae-sequence \qHyperrphis 21 @ @ superscript 𝑞 𝑛 𝑏 𝑐 𝑞 𝑧 q-Pochhammer-symbol 𝑏 𝑞 𝑛 q-Pochhammer-symbol 𝑐 𝑞 𝑛 superscript 𝑞 𝑛 \binomial 𝑛 2 superscript 𝑧 𝑛 \qHyperrphis 21 @ @ superscript 𝑞 𝑛 superscript 𝑐 1 superscript 𝑞 1 𝑛 superscript 𝑏 1 superscript 𝑞 1 𝑛 𝑞 𝑐 superscript 𝑞 𝑛 1 𝑏 𝑧 {\displaystyle{\displaystyle{\displaystyle\qHyperrphis{2}{1}@@{q^{-n},b}{c}{q}% {z}=\frac{\left(b;q\right)_{n}}{\left(c;q\right)_{n}}q^{-n-\binomial{n}{2}}(-z% )^{n}\ \qHyperrphis{2}{1}@@{q^{-n},c^{-1}q^{1-n}}{b^{-1}q^{1-n}}{q}{\frac{cq^{% n+1}}{bz}}}}}

Proof

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Symbols List

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
( 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
( n k ) binomial 𝑛 𝑘 {\displaystyle{\displaystyle{\displaystyle\genfrac{(}{)}{0.0pt}{}{n}{k}}}}  : binomial coefficient : http://dlmf.nist.gov/1.2#E1 http://dlmf.nist.gov/26.3#SS1.p1

Bibliography

Equation in Section 1.13 of KLS.

URL links

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