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Linked to the preprint hal-01510960; This video is linked to the preprint "Explicit solution and fine asymptotics for a critical growth-fragmentation equation"https://hal.archives-ouvertes.fr/view/index/docid/1510960It simulates the quantity $\sqrt{t} n(t,y)$ with $n$ solution of the equation$$\frac{\partial}{\partial t} n(t,y) + n(t,y)=n(t,y+\log 2),\qquad n(0,y)=n_0(y),$$with $n_0(y)$ a gaussian of mean $0$ and standard deviation $0.1$.