Séminaire Doctorants
organisé par l'équipe DOCT
-
Anna Marduel
Gromov non-squeezing theorem
21 mai 2026 - 16:30Salle de conférences IRMA
The Gromov non-squeezing theorem is a famous result in symplectic geometry that illustrates the notion of symplectic rigidity. It states that, to symplectically embed a closed ball into a cylinder, the radius of the ball must be smaller than that of the cylinder. In this talk, I will present the proof for linear symplectomorphisms and explain why the Gromov non-squeezing theorem is surprising when compared to the linear case and the volume-preserving diffeomorphism case.