Formula:KLS:14.14:07: Difference between revisions

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

Substitution(s)

D ( x ) = ( 1 - q x ) ( p - q x - N - 1 ) 𝐷 𝑥 1 superscript 𝑞 𝑥 𝑝 superscript 𝑞 𝑥 𝑁 1 {\displaystyle{\displaystyle{\displaystyle D(x)=(1-q^{x})(p-q^{x-N-1})}}} &

B ( x ) = - q x ( 1 - q x - N ) 𝐵 𝑥 superscript 𝑞 𝑥 1 superscript 𝑞 𝑥 𝑁 {\displaystyle{\displaystyle{\displaystyle B(x)=-q^{x}(1-q^{x-N})}}} &

y ( x ) = K n qtm ( q - x ; p , N ; q ) 𝑦 𝑥 quantum-q-Krawtchouk-polynomial-K 𝑛 superscript 𝑞 𝑥 𝑝 𝑁 𝑞 {\displaystyle{\displaystyle{\displaystyle y(x)=K^{\mathrm{qtm}}_{n}\!\left(q^% {-x};p,N;q\right)}}}


Proof

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Symbols List

& : logical and
K n qtm subscript superscript 𝐾 qtm 𝑛 {\displaystyle{\displaystyle{\displaystyle K^{\mathrm{qtm}}_{n}}}}  : quantum q 𝑞 {\displaystyle{\displaystyle{\displaystyle q}}} -Krawtchouk polynomial : http://drmf.wmflabs.org/wiki/Definition:qtmqKrawtchouk

Bibliography

Equation in Section 14.14 of KLS.

URL links

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