Séminaire Analyse-Probabilités

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Intervenant : HAMZA Mohammed Ali (Imam Abdulrahman Bin Faisal University)
Titre :
The blow-up rate for some nonlinear evolution equations without scale invariance

Le : 09/10/2025 de : 10:30 à : 11:30
In this talk, we discuss some evolution equations with logarithmic nonlinearity in the subconformal case. We show that all blow-up solutions in the subconformal range are Type I solutions. This will constitute a good start in proving that the scale invariance property is not crucial in deriving the blow-up rate.
Salle : A711

Séminaire Analyse-Probabilités

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Intervenant : KRUPA Sam (ENS Paris)
Titre :
Are $L^\infty$ solutions to hyperbolic systems of conservation laws unique?

Le : 14/10/2025 de : 10:30 à : 11:30
For hyperbolic systems of conservation laws in 1-D, fundamental questions about uniqueness and blow up of weak solutions still remain even for the apparently “simple” systems of two conserved quantities such as isentropic Euler and the p-system. Similarly, in the multi-dimensional case, a longstanding open question has been the uniqueness of weak solutions with initial data corresponding to the compressible vortex sheet. We address all of these questions by using the lens of convex integration, a general method of constructing highly irregular and non-unique solutions to PDEs. Our proofs involve computer-assistance. This talk is based on joint work with László Székelyhidi, Jr.
Salle : A711

Séminaire Analyse-Probabilités

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Intervenant : DAVID Noemi (LMRS - Université de Rouen)
Titre :
TBA

Le : 25/11/2025 de : 10:30 à : 11:30
TBA
Salle : A711

Séminaire Analyse-Probabilités

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Intervenant : SALORT Delphine (LJLL)
Titre :
TBA

Le : 16/12/2025 de : 10:30 à : 11:30
TBA
Salle : A711

Séminaire Analyse-Probabilités

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Intervenant : AYI Nathalie (LJLL)
Titre :
TBA

Le : 19/05/2026 de : 10:30 à : 11:30
TBA
Salle : A711