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A short proof of cuplength estimates on Lagrangian intersections
Communications in Analysis and Mechanics 2023, 15(2): 50-57
Published: 15 June 2023
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In this note we give a short proof of Arnold's conjecture for the zero section of a cotangent bundle of a closed manifold. The proof is based on some basic properties of Lagrangian spectral invariants from Floer theory.

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