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A short proof of a conjecture of Matsushita

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abstract

In this note we build on the arguments of van Geemen and Voisin to prove a conjecture of Matsushita that a Lagrangian fibration of an irreducible hyperk\"ahler manifold is either isotrivial or of maximal variation. We also complete a partial result of Voisin regarding the density of torsion points of sections of Lagrangian fibrations.

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2025 1

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representative citing papers

Hodge theory and o-minimality at CIRM

math.AG · 2025-02-05 · unverdicted · novelty 0.0

Survey lecture notes connecting o-minimality, Ax-Schanuel theorems, and the Zilber-Pink conjecture for Hodge loci, with no new results.

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  • Hodge theory and o-minimality at CIRM math.AG · 2025-02-05 · unverdicted · none · ref 6 · internal anchor

    Survey lecture notes connecting o-minimality, Ax-Schanuel theorems, and the Zilber-Pink conjecture for Hodge loci, with no new results.