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THÈSE Nicolas VASSET

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h ij <br />

∂2hij 2 N<br />

−<br />

∂t2 ψ4 ∆hij ∂h<br />

− 2Lβ<br />

ij<br />

∂t + LβLβh ij = L ∂β h<br />

∂t<br />

ij<br />

+ 4<br />

<br />

k ∂<br />

Dkβ − Lβ h<br />

3 ∂t ij − N<br />

ψ6 DkQ D i h jk + D j h ik − D k h ij<br />

+ 1<br />

<br />

∂<br />

∂<br />

− Lβ N − Lβ h<br />

N ∂t ∂t ij − 2<br />

3 Dkβ k h ij + (Lβ) ij<br />

<br />

+ 2<br />

<br />

∂<br />

− Lβ Dkβ<br />

3 ∂t k − 2<br />

3 (Dkβ k ) 2<br />

<br />

h ij + 2NS ij<br />

−<br />

<br />

∂<br />

− Lβ<br />

∂t<br />

<br />

<br />

(Lβ) ij + 2<br />

3 Dkβ k (Lβ) ij , <br />

(Lβ) ij = D i β j + D j β i − 2<br />

3 Dkβ k f ij . <br />

h ij <br />

<br />

<br />

<br />

h ij A ij <br />

A ij = 1<br />

2N<br />

<br />

(Lβ) ij + ∂hij<br />

∂t − Lβh ij − 2<br />

3 Dkβ k h ij<br />

<br />

. <br />

<br />

<br />

<br />

<br />

h ij <br />

∂h ij<br />

∂t <br />

<br />

h ij<br />

<br />

<br />

<br />

<br />

h ij

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