Formula:KLS:09.07:04

From DRMF
Jump to navigation Jump to search


x P ^ n ( λ ) ( x ) = P ^ n + 1 ( λ ) ( x ) - ( n + λ tan ϕ ) P ^ n ( λ ) ( x ) + n ( n + 2 λ - 1 ) 4 sin 2 ϕ P ^ n - 1 ( λ ) ( x ) 𝑥 Meixner-Pollaczek-polynomial-monic-p 𝜆 𝑛 𝑥 italic-ϕ Meixner-Pollaczek-polynomial-monic-p 𝜆 𝑛 1 𝑥 italic-ϕ 𝑛 𝜆 italic-ϕ Meixner-Pollaczek-polynomial-monic-p 𝜆 𝑛 𝑥 italic-ϕ 𝑛 𝑛 2 𝜆 1 4 2 italic-ϕ Meixner-Pollaczek-polynomial-monic-p 𝜆 𝑛 1 𝑥 italic-ϕ {\displaystyle{\displaystyle{\displaystyle x{\widehat{P}}^{(\lambda)}_{n}\!% \left(x\right)={\widehat{P}}^{(\lambda)}_{n+1}\!\left(x\right)-\left(\frac{n+% \lambda}{\tan\phi}\right){\widehat{P}}^{(\lambda)}_{n}\!\left(x\right)+\frac{n% (n+2\lambda-1)}{4{\sin^{2}}\phi}{\widehat{P}}^{(\lambda)}_{n-1}\!\left(x\right% )}}}

Proof

We ask users to provide proof(s), reference(s) to proof(s), or further clarification on the proof(s) in this space.

Symbols List

P ^ n ( α ) subscript superscript ^ 𝑃 𝛼 𝑛 {\displaystyle{\displaystyle{\displaystyle{\widehat{P}}^{(\alpha)}_{n}}}}  : monic Meixner-Pollaczek polynomial : http://drmf.wmflabs.org/wiki/Definition:monicMeixnerPollaczek
tan tan {\displaystyle{\displaystyle{\displaystyle\mathrm{tan}}}}  : tangent function : http://dlmf.nist.gov/4.14#E4
sin sin {\displaystyle{\displaystyle{\displaystyle\mathrm{sin}}}}  : sine function : http://dlmf.nist.gov/4.14#E1

Bibliography

Equation in Section 9.7 of KLS.

URL links

We ask users to provide relevant URL links in this space.