Thèse de Fabien Crauste

∂
∂tn+∂ ∂an+∂ ∂m[V(m)n] = −(δ+β)n,
∂
∂tp+∂ ∂ap+∂ ∂m[V(m)p] = −(γ+D)p,
n=n(t, m, a)p=p(t, m, a)
n(t, m, 0) = 2G0(m)ZD(G(m), a)p(t, G(m), a)da, p(t, m, 0) = Zβnda.
V(m)m= 0
m= 0

δ β γ
N(t, m) = Rn(t, m, a)da
N= 0
m= 0
D
m= 0