The monodromy conjecture for relatively exact Lagrangians

Let MM be a compact or Liouville symplectic manifold, and let LML\subseteq M be a compact, relatively exact Lagrangian. Let ϕ~:LL\tilde\phi:L\to L be a diffeomorphism extending to a Hamiltonian diffeomorphism ϕ:MM\phi:M\to M. Monodromy conjecture. The diffeomorphism ϕ~\tilde\phi is isotopic to the identity. This would strengthen known constraints on Hamiltonian extensions, which act trivially on various cohomological and homotopical invariants of LL.

Sources & referencesView supporting material

Primary source

Noah Porcelli, “C^0 Lagrangian Monodromy”, arXiv:2404.04591 (2025).

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