Pré-Publication, Document De Travail Année : 2025

Liouville quantum duality and random planar maps

Résumé

We consider models of block-weighted random planar maps in which possibly decorated maps are decomposed canonically into blocks, each block receiving the weight u. These maps present a transition at some critical value u = u_cr above which the maps degenerate into Brownian trees. We show that the enumerative properties and critical exponents of the maps at u = u_cr and those for u < u_cr are connected by duality relations which are precisely those expected in the context of the Liouville quantum gravity description of random surfaces. We illustrate this result by various instances of blockweighted maps: random planar quadrangulations decomposed into simple blocks, Hamiltonian cycles on cubic or bicubic planar maps decomposed into irreducible blocks, and meandric systems.

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hal-05166909 , version 1 (17-07-2025)

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Bertrand Duplantier, Emmanuel Guitter. Liouville quantum duality and random planar maps. 2025. ⟨hal-05166909⟩
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