Separation of Variables -- Legendre Equations - Louisiana Tech ...
Separation of Variables -- Legendre Equations - Louisiana Tech ...
Separation of Variables -- Legendre Equations - Louisiana Tech ...
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Introduction ∆ in a Spherically Symmetric Geometry Separating Spherical Coordinates Obtaining the <strong>Legendre</strong> Equation<br />
Separating the Equation ∆u = f (ρ)u (Radial Part)<br />
∂ 2u 2 ∂u 1<br />
+ +<br />
∂ρ 2 ρ ∂ρ ρ2 ∂ 2u cos(φ)<br />
+<br />
∂φ 2 ρ2 sin(φ)<br />
R ′′ TP + 2<br />
ρ R′ TP + 1<br />
ρ 2 RTP′′ + cos(φ)<br />
ρ 2 sin(φ) RTP′ +<br />
2 R′′ R′ P′′<br />
ρ + 2ρ +<br />
R R P<br />
∂u<br />
∂φ +<br />
1<br />
ρ2 sin 2 ∂<br />
(φ)<br />
2u ∂θ 2 = f (ρ)u<br />
1<br />
ρ2 sin 2 (φ) RT′′ P = f (ρ)RTP<br />
logo1<br />
Bernd Schröder <strong>Louisiana</strong> <strong>Tech</strong> University, College <strong>of</strong> Engineering and Science<br />
<strong>Separation</strong> <strong>of</strong> <strong>Variables</strong> – <strong>Legendre</strong> <strong>Equations</strong>