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math.SG2026
A counterexample to the generalized Viterbo conjecture on the spectral distance in a disc cotangent bundle
Filip Broćić, Baptiste Serraille, Ibrahim Trifa
We prove the unboundedness of the spectral distance on the space of Lagrangians Hamiltonian isotopic to the zero section within the disc cotangent bundle of a closed manifold satis…
math.SG2026
A Multidimensional Birkhoff Theorem for some Lagrangians
Skander Charfi, Ibrahim Trifa
We prove a multidimensional Birkhoff theorem for a new class of " Lagrangian subsets" in cotangent bundles, obtained as Hausdorff limits of compact exact Lagrangian submanifol…