Legendre and Related Functions - 14.25 Integral Representations

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14.25.E1 P Ξ½ - ΞΌ ⁑ ( z ) = ( z 2 - 1 ) ΞΌ / 2 2 Ξ½ ⁒ Ξ“ ⁑ ( ΞΌ - Ξ½ ) ⁒ Ξ“ ⁑ ( Ξ½ + 1 ) ⁒ ∫ 0 ∞ ( sinh ⁑ t ) 2 ⁒ Ξ½ + 1 ( z + cosh ⁑ t ) Ξ½ + ΞΌ + 1 ⁒ d t Legendre-P-first-kind πœ‡ 𝜈 𝑧 superscript superscript 𝑧 2 1 πœ‡ 2 superscript 2 𝜈 Euler-Gamma πœ‡ 𝜈 Euler-Gamma 𝜈 1 superscript subscript 0 superscript 𝑑 2 𝜈 1 superscript 𝑧 𝑑 𝜈 πœ‡ 1 𝑑 {\displaystyle{\displaystyle P^{-\mu}_{\nu}\left(z\right)=\frac{\left(z^{2}-1% \right)^{\mu/2}}{2^{\nu}\Gamma\left(\mu-\nu\right)\Gamma\left(\nu+1\right)}% \int_{0}^{\infty}\frac{(\sinh t)^{2\nu+1}}{(z+\cosh t)^{\nu+\mu+1}}\mathrm{d}t}}
\assLegendreP[-\mu]{\nu}@{z} = \frac{\left(z^{2}-1\right)^{\mu/2}}{2^{\nu}\EulerGamma@{\mu-\nu}\EulerGamma@{\nu+1}}\int_{0}^{\infty}\frac{(\sinh@@{t})^{2\nu+1}}{(z+\cosh@@{t})^{\nu+\mu+1}}\diff{t}
β„œ ⁑ ΞΌ > β„œ ⁑ Ξ½ , β„œ ⁑ Ξ½ > - 1 , β„œ ⁑ ( ΞΌ - Ξ½ ) > 0 , β„œ ⁑ ( Ξ½ + 1 ) > 0 formulae-sequence πœ‡ 𝜈 formulae-sequence 𝜈 1 formulae-sequence πœ‡ 𝜈 0 𝜈 1 0 {\displaystyle{\displaystyle\Re\mu>\Re\nu,\Re\nu>-1,\Re(\mu-\nu)>0,\Re(\nu+1)>% 0}}
LegendreP(nu, - mu, z) = (((z)^(2)- 1)^(mu/2))/((2)^(nu)* GAMMA(mu - nu)*GAMMA(nu + 1))*int(((sinh(t))^(2*nu + 1))/((z + cosh(t))^(nu + mu + 1)), t = 0..infinity)
LegendreP[\[Nu], - \[Mu], 3, z] == Divide[((z)^(2)- 1)^(\[Mu]/2),(2)^\[Nu]* Gamma[\[Mu]- \[Nu]]*Gamma[\[Nu]+ 1]]*Integrate[Divide[(Sinh[t])^(2*\[Nu]+ 1),(z + Cosh[t])^(\[Nu]+ \[Mu]+ 1)], {t, 0, Infinity}, GenerateConditions->None]
Error Aborted - Skipped - Because timed out
14.25.E2 𝑸 Ξ½ ΞΌ ⁑ ( z ) = Ο€ 1 / 2 ⁒ ( z 2 - 1 ) ΞΌ / 2 2 ΞΌ ⁒ Ξ“ ⁑ ( ΞΌ + 1 2 ) ⁒ Ξ“ ⁑ ( Ξ½ - ΞΌ + 1 ) ⁒ ∫ 0 ∞ ( sinh ⁑ t ) 2 ⁒ ΞΌ ( z + ( z 2 - 1 ) 1 / 2 ⁒ cosh ⁑ t ) Ξ½ + ΞΌ + 1 ⁒ d t associated-Legendre-black-Q πœ‡ 𝜈 𝑧 superscript πœ‹ 1 2 superscript superscript 𝑧 2 1 πœ‡ 2 superscript 2 πœ‡ Euler-Gamma πœ‡ 1 2 Euler-Gamma 𝜈 πœ‡ 1 superscript subscript 0 superscript 𝑑 2 πœ‡ superscript 𝑧 superscript superscript 𝑧 2 1 1 2 𝑑 𝜈 πœ‡ 1 𝑑 {\displaystyle{\displaystyle\boldsymbol{Q}^{\mu}_{\nu}\left(z\right)=\frac{\pi% ^{1/2}\left(z^{2}-1\right)^{\mu/2}}{2^{\mu}\Gamma\left(\mu+\frac{1}{2}\right)% \Gamma\left(\nu-\mu+1\right)}\*\int_{0}^{\infty}\frac{(\sinh t)^{2\mu}}{\left(% z+(z^{2}-1)^{1/2}\cosh t\right)^{\nu+\mu+1}}\mathrm{d}t}}
\assLegendreOlverQ[\mu]{\nu}@{z} = \frac{\pi^{1/2}\left(z^{2}-1\right)^{\mu/2}}{2^{\mu}\EulerGamma@{\mu+\frac{1}{2}}\EulerGamma@{\nu-\mu+1}}\*\int_{0}^{\infty}\frac{(\sinh@@{t})^{2\mu}}{\left(z+(z^{2}-1)^{1/2}\cosh@@{t}\right)^{\nu+\mu+1}}\diff{t}
β„œ ⁑ ( Ξ½ + 1 ) > β„œ ⁑ ΞΌ , β„œ ⁑ ΞΌ > - 1 2 , β„œ ⁑ ( ΞΌ + 1 2 ) > 0 , β„œ ⁑ ( Ξ½ - ΞΌ + 1 ) > 0 formulae-sequence 𝜈 1 πœ‡ formulae-sequence πœ‡ 1 2 formulae-sequence πœ‡ 1 2 0 𝜈 πœ‡ 1 0 {\displaystyle{\displaystyle\Re\left(\nu+1\right)>\Re\mu,\Re\mu>-\tfrac{1}{2},% \Re(\mu+\frac{1}{2})>0,\Re(\nu-\mu+1)>0}}
exp(-(mu)*Pi*I)*LegendreQ(nu,mu,z)/GAMMA(nu+mu+1) = ((Pi)^(1/2)*((z)^(2)- 1)^(mu/2))/((2)^(mu)* GAMMA(mu +(1)/(2))*GAMMA(nu - mu + 1))* int(((sinh(t))^(2*mu))/((z +((z)^(2)- 1)^(1/2)* cosh(t))^(nu + mu + 1)), t = 0..infinity)
Exp[-(\[Mu]) Pi I] LegendreQ[\[Nu], \[Mu], 3, z]/Gamma[\[Nu] + \[Mu] + 1] == Divide[(Pi)^(1/2)*((z)^(2)- 1)^(\[Mu]/2),(2)^\[Mu]* Gamma[\[Mu]+Divide[1,2]]*Gamma[\[Nu]- \[Mu]+ 1]]* Integrate[Divide[(Sinh[t])^(2*\[Mu]),(z +((z)^(2)- 1)^(1/2)* Cosh[t])^(\[Nu]+ \[Mu]+ 1)], {t, 0, Infinity}, GenerateConditions->None]
Error Aborted - Skipped - Because timed out