Embed Size (px)
Citation preview
π −
π
Δ
−+=+
+ −− = −
[ ]−++=
ϕω +=
[ ] ϕ ω ωω ϕ= + = =
=ϕ= = −
= ϕ =
=∂
∂−Δ με =
∂
∂−Δ με
−= ω −= ω
+= +=
ω
=
ε
ω
ε
ω= −
ω= +
ω= −
σ
ε ω
= ∧
ε ω
ε ω
=
=
= =
( )θ
θ
θ
( )ω= ω
( )ω ϕ= +
θ θ=
∈∈
μ
π=
μ
π=
=
IM
PR
IM
ER
IE
NA
TI
ON
AL
E –
14
1325
– D
’ap
rès
do
cum
ents
fo
urn
is
