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math.SG2025
Flexibility of the Hamiltonian adjoint action and classification of bi-invariant metrics
Lev Buhovsky, Maksim Stokić
On an open, connected symplectic manifold , the group of Hamiltonian diffeomorphisms forms an infinite-dimensional Fréchet Lie group with Lie algebra and a…
math.SG2025
-Contact Geometry of Surfaces in 3-Manifolds
Baptiste Serraille, Maksim Stokić
We prove that contact homeomorphisms preserve characteristic foliations on surfaces in contact -manifolds. More precisely, since the characteristic foliation is a singular -d…