THÈSE Nicolas VASSET

THÈSE Nicolas VASSET THÈSE Nicolas VASSET

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∇ · D0 = 0 W W µ W θ ϕ ∂rW η W η W r + − r r W D0 A = ∂W η ∂r + W η r r W − . r D0 = 0 ⇐⇒ W µ = 0 A = 0. V µ A V r V η (∆V) η = ∆V η r V + 2 , r2 (∆V) µ = ∆V µ . µ ∂ 2 V µ ∂t 2 = ∆V µ . A ∂2A = ∆A. ∂t2 V F Φ Ψ F = ∇ × (Ψk) + ∇ × ∇ × (Φk) k eρ

k = er F = − 1 r2 ∆θϕΦer + 1 r 1 sin θ ∂ϕΨ + ∂θ∂rΦ eθ + 1 r −∂θΨ + 1 sin θ ∂ϕ∂rΦ F η F µ F η = 1 r ∂rΦ F µ = − 1 r Ψ A Φ A = 1 r ∂2 r Φ + 1 ∆Φ = ∆ r3 Φ r eϕ. . ∆θϕA = −∆(rF r ). V µ A v0 w0 V µ (t = 0) ∂V µ ∂t A t=0 µ v0 w0 b0 V µ A R [0, T ] V (V r , V η ) V A V r V η A A(t, r, θ, ϕ) = ℓ,m A ℓm (t, r)Y m ℓ (θ, ϕ). ∀ℓ > 0, ∀m − ℓ ≤ m ≤ ℓ, ⎧ ⎪⎨ ⎪⎩ ∂R ℓm ∂r + 2Rℓm r ∂E ℓm ∂r ℓ(ℓ + 1) − E r ℓm = 0 Eℓm Rℓm + − = Aℓm r r .

k = er <br />

<br />

F = − 1<br />

r2 ∆θϕΦer + 1<br />

r<br />

1<br />

sin θ ∂ϕΨ + ∂θ∂rΦ<br />

<br />

eθ + 1<br />

r<br />

<br />

−∂θΨ + 1<br />

sin θ ∂ϕ∂rΦ<br />

F η F µ <br />

F η = 1<br />

r ∂rΦ<br />

F µ = − 1<br />

r Ψ<br />

A Φ <br />

A = 1<br />

r ∂2 r Φ + 1<br />

∆Φ = ∆<br />

r3 <br />

Φ<br />

r<br />

<br />

eϕ. <br />

<br />

. <br />

∆θϕA = −∆(rF r ). <br />

<br />

<br />

<br />

<br />

<br />

<br />

V µ A v0 w0<br />

V µ (t = 0) ∂V µ<br />

∂t<br />

<br />

A <br />

t=0 µ v0 w0<br />

b0 <br />

V µ A <br />

R [0, T ] <br />

V<br />

(V r , V η ) V <br />

A <br />

<br />

V r V η <br />

A <br />

A(t, r, θ, ϕ) = <br />

ℓ,m<br />

A ℓm (t, r)Y m<br />

ℓ (θ, ϕ). <br />

<br />

∀ℓ > 0, ∀m − ℓ ≤ m ≤ ℓ,<br />

⎧<br />

⎪⎨<br />

⎪⎩<br />

∂R ℓm<br />

∂r<br />

+ 2Rℓm<br />

r<br />

∂E ℓm<br />

∂r<br />

ℓ(ℓ + 1)<br />

− E<br />

r<br />

ℓm = 0<br />

Eℓm Rℓm<br />

+ − = Aℓm<br />

r<br />

r<br />

.

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