THÈSE Nicolas VASSET

THÈSE Nicolas VASSET THÈSE Nicolas VASSET

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∂ 2 A = ∆A, ∂t2 ∂2B C = ∆B − , 2 2 ∂t 2r ∂2C 2C = ∆C + ∂t2 r r2 . B C A B C A(t, r, θ, ϕ) = ℓ,m B(t, r, θ, ϕ) = ℓ,m C(t, r, θ, ϕ) = ℓ,m 2 + 8∆θϕB A ℓm (t, r)Y m ℓ (θ, ϕ), B ℓm (t, r)Y m ℓ (θ, ϕ), C ℓm (t, r)Y m ℓ (θ, ϕ). ˜ B Ĉ ˜B(t, r, θ, ϕ) = 2B ℓ,m ℓm (t, r) + Cℓm (t, r) Y 2(ℓ + 1) m ℓ (θ, ϕ), Ĉ(t, r, θ, ϕ) = ℓm ℓm m C (t, r) − 4ℓB (t, r) Yℓ (θ, ϕ). ℓ,m ∂2B˜ ∂t2 = ˜ ∆ ˜ B, ∂2Ĉ ∂t2 = ˆ ∆Ĉ; f(r, θ, ϕ) = (ℓ,m) f ℓm (r)Y m ℓ (θ, ϕ) ˜∆f = ∂2f 2 ∂f + ∂r2 r ∂r ˆ∆f = ∂2f 2 ∂f + ∂r2 r ∂r 1 + r2 + 1 r 2 ℓm ℓm −ℓ(ℓ − 1)f ℓm Y m ℓ −(ℓ + 1)(ℓ + 2)f ℓm Y m ℓ , . 1 ℓ ∆θϕ ˜ ∆ ˆ ∆

h ij ˜γ ij = f ij + h ij 1 h h B C C B ∂C ∂r + 2C r + 2∆θϕ ∂B ∂r + 3B r C − = ∆h. 4r h B r C 0 ˜ B Ĉ h A ˜ B h = 0 A(t, r, θ, ϕ) ˜ B(t, r, θ, ϕ) h t A ˜ B A H µ = 0 h µ h X h ∂B ℓm 2 ∂r ∂B ℓm 1 ∂r Bℓm 1 − r = Aℓm , 3Bℓm 1 + r 2 − ℓ(ℓ + 1)Bℓm 2 + r = 0. ˜ B Hr = Hη = 0

h ij <br />

˜γ ij = f ij + h ij 1<br />

<br />

<br />

h <br />

h <br />

<br />

B C <br />

C B <br />

<br />

∂C<br />

∂r<br />

+ 2C<br />

r<br />

+ 2∆θϕ<br />

∂B<br />

∂r<br />

+ 3B<br />

r<br />

<br />

C<br />

− = ∆h.<br />

4r<br />

h B <br />

r C 0 <br />

˜ B Ĉ <br />

<br />

h <br />

<br />

<br />

A ˜ B <br />

<br />

<br />

<br />

<br />

h = 0 <br />

<br />

<br />

A(t, r, θ, ϕ) ˜ B(t, r, θ, ϕ) <br />

h t <br />

<br />

<br />

A ˜ B <br />

<br />

<br />

A H µ = 0 <br />

h µ h X h <br />

∂B ℓm<br />

2<br />

∂r<br />

∂B ℓm<br />

1<br />

∂r<br />

Bℓm 1<br />

−<br />

r = Aℓm , <br />

3Bℓm 1<br />

+<br />

r<br />

2 − ℓ(ℓ + 1)Bℓm 2<br />

+<br />

r<br />

= 0. <br />

˜ B <br />

Hr = Hη = 0

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