Formula:KLS:14.11:09

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q - n ( 1 - q n ) x 2 y ( x ) = B ( x ) y ( q x ) - [ B ( x ) + D ( x ) ] y ( x ) + D ( x ) y ( q - 1 x ) superscript 𝑞 𝑛 1 superscript 𝑞 𝑛 superscript 𝑥 2 𝑦 𝑥 𝐵 𝑥 𝑦 𝑞 𝑥 delimited-[] 𝐵 𝑥 𝐷 𝑥 𝑦 𝑥 𝐷 𝑥 𝑦 superscript 𝑞 1 𝑥 {\displaystyle{\displaystyle{\displaystyle q^{-n}(1-q^{n})x^{2}y(x)=B(x)y(qx)-% \left[B(x)+D(x)\right]y(x)+D(x)y(q^{-1}x)}}}

Substitution(s)

D ( x ) = ( x - a q ) ( x - b q ) 𝐷 𝑥 𝑥 𝑎 𝑞 𝑥 𝑏 𝑞 {\displaystyle{\displaystyle{\displaystyle D(x)=(x-aq)(x-bq)}}} &

B ( x ) = a b q ( 1 - x ) 𝐵 𝑥 𝑎 𝑏 𝑞 1 𝑥 {\displaystyle{\displaystyle{\displaystyle B(x)=abq(1-x)}}} &

y ( x ) = P n ( x ; a , b ; q ) 𝑦 𝑥 big-q-Laguerre-polynomial-P 𝑛 𝑥 𝑎 𝑏 𝑞 {\displaystyle{\displaystyle{\displaystyle y(x)=P_{n}\!\left(x;a,b;q\right)}}}


Proof

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Symbols List

& : logical and
P n subscript 𝑃 𝑛 {\displaystyle{\displaystyle{\displaystyle P_{n}}}}  : big q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -Laguerre polynomial : http://drmf.wmflabs.org/wiki/Definition:bigqLaguerre

Bibliography

Equation in Section 14.11 of KLS.

URL links

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