activity
20082026
most citedQuantitative stochastic homogenization and large-scale regularity

186 citations · 896 across the 70 of their papers we have counts for

collaborators

81 papers

math.PR2026

Free energy of non-convex multi-species spherical spin glasses

Hong-Bin Chen, Jean-Christophe Mourrat

We identify the limit free energy of all mean-field multi-species spin glasses defined on products of spheres. In particular, we do not make any convexity assumption on the covaria…

math.PR2026

Efficient computation of the asymptotics of extensive-rank HCIZ integrals

Antoine Maillard, Jean-Christophe Mourrat

We study the high-dimensional asymptotics of Harish-Chandra-Itzykson-Zuber (HCIZ) integrals in the extensive-rank regime. The limit of these integrals is governed by a one-dimensio…

cs.LG2026

Singular perturbations and hierarchical learning in two-layer neural networks

Cédric Gerbelot, Jean-Christophe Mourrat

We study the population gradient flow of an infinitely wide two-layer neural network learning a misspecified single-index model in high dimension. The two layers are optimized join…

math.PR2026

Free energy of non-convex multi-species spin glasses with centered Ising spins

Hong-Bin Chen, Victor Issa, Jean-Christophe Mourrat

We identify the limit free energy of all multi-species spin glasses with centered spins. The result was previously known only under a convexity assumption on the covariance…

math.OC2026

Oscillating solutions to the mean-field Langevin descent-ascent flow

Jean-Christophe Mourrat, Loucas Pillaud-Vivien

We present a counterexample to the statement of convergence of the mean-field Langevin descent-ascent flow on . We consider payoff functions that are shaped as a doub…

math.PR2026

One-sided large deviations for the ground-state energy of spin glasses

Hong-Bin Chen, Alice Guionnet, Justin Ko +2

We describe the large deviations above its typical value of the maximal energy of a spin glass with +/-1 spins. Thanks to the relatively explicit description of the rate function w…