The uniform Lagrangian spectral-width conjecture

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Let NN be a closed manifold, let gg be a Riemannian metric on NN, and let D1TN={(q,p)pg1}D_1T^*N=\{(q,p)\mid |p|_g\leq 1\}. Let L(TN)\mathfrak L(T^*N) denote the relevant class of closed exact Lagrangians, and let γ(L)\gamma(L) denote the Lagrangian spectral invariant used in the source. Uniform spectral-width conjecture. There exists a constant CN(g)C_N(g) such that, for every Lagrangian LL(TN)L\in\mathfrak L(T^*N) contained in D1TND_1T^*N,

γ(L)CN(g).\gamma(L)\leq C_N(g).

The claim asks for a uniform bound on the spectral invariant for all such Lagrangians. The supplied text does not identify a resolution or provide an attribution, so its current status should be checked.

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Sources & referencesView supporting material

Primary source

Marie-Claude Arnaud, Vincent Humilière and Claude Viterbo, “Higher Dimensional Birkhoff attractors (with an appendix by Maxime Zavidovique)”, arXiv:2404.00804 (2026).

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