We consider the non linear focusing wave equation $\partial_{tt}u-\Delta u-u|u|^{p-1}=0$ in large dimensions and for radially symmetric data, in the energy supercritical zone for p large enough. We construct finite time blow up solutions that concentrate the soliton profile $u \sim \frac{1}{\lambda^{\frac{2}{p-1}}}Q (\frac{r} {\lambda})$, $Q$ being a special stationary state of the equation. The blow up is of type II i.e all norms below scaling remain bounded. The scale shrinks at quantized blow up rates: we exhibit a countable family of asymptotic behaviors near blow up time for the scale lambda. For each rate we are able to prove that there exists a Lipschitz manifold with explicit codimension of initial data leading to such solutions. Ou...
International audienceWe consider the energy supercritical d + 1 d+1 -dimensional semi-linear heat e...
We consider spherically symmetric supercritical focusing wave equations outside a ball. Using mixed ...
AbstractWe study blow-up of radially symmetric solutions of the nonlinear heat equation ut=Δu+|u|p−1...
We consider the non linear focusing wave equation $\partial_{tt}u-\Delta u-u|u|^{p-1}=0$ in large di...
International audienceWe consider the energy supercritical defocusing nonlinear Schrödinger equation...
We exhibit $\mathcal C^{\infty}$ type II blow up solutions to the focusing energy critical wave equa...
International audienceWe exhibit $\mathcal C^{\infty}$ type II blow up solutions to the focusing ene...
In this thesis we study the global behavior of solutions of the energy-criticalfocusing nonlinear wa...
In this thesis we study the global behavior of solutions of the energy-criticalfocusing nonlinear wa...
In this thesis we study the global behavior of solutions of the energy-criticalfocusing nonlinear wa...
In this thesis we study the global behavior of solutions of the energy-criticalfocusing nonlinear wa...
In this thesis we study the global behavior of solutions of the energy-criticalfocusing nonlinear wa...
In this paper, we discuss singularity formation for the focusing cubic wave equation in the energy s...
We consider the energy super critical $d+1$ dimensional semilinear heat equation $$\pa_tu=\Delta u+u...
Abstract. We exhibit C ∞ type II blow up solutions to the focusing energy critical wave equation in ...
International audienceWe consider the energy supercritical d + 1 d+1 -dimensional semi-linear heat e...
We consider spherically symmetric supercritical focusing wave equations outside a ball. Using mixed ...
AbstractWe study blow-up of radially symmetric solutions of the nonlinear heat equation ut=Δu+|u|p−1...
We consider the non linear focusing wave equation $\partial_{tt}u-\Delta u-u|u|^{p-1}=0$ in large di...
International audienceWe consider the energy supercritical defocusing nonlinear Schrödinger equation...
We exhibit $\mathcal C^{\infty}$ type II blow up solutions to the focusing energy critical wave equa...
International audienceWe exhibit $\mathcal C^{\infty}$ type II blow up solutions to the focusing ene...
In this thesis we study the global behavior of solutions of the energy-criticalfocusing nonlinear wa...
In this thesis we study the global behavior of solutions of the energy-criticalfocusing nonlinear wa...
In this thesis we study the global behavior of solutions of the energy-criticalfocusing nonlinear wa...
In this thesis we study the global behavior of solutions of the energy-criticalfocusing nonlinear wa...
In this thesis we study the global behavior of solutions of the energy-criticalfocusing nonlinear wa...
In this paper, we discuss singularity formation for the focusing cubic wave equation in the energy s...
We consider the energy super critical $d+1$ dimensional semilinear heat equation $$\pa_tu=\Delta u+u...
Abstract. We exhibit C ∞ type II blow up solutions to the focusing energy critical wave equation in ...
International audienceWe consider the energy supercritical d + 1 d+1 -dimensional semi-linear heat e...
We consider spherically symmetric supercritical focusing wave equations outside a ball. Using mixed ...
AbstractWe study blow-up of radially symmetric solutions of the nonlinear heat equation ut=Δu+|u|p−1...