Search Results - "Ben Arous, Gérard"
-
1
Spectral Gap Estimates in Mean Field Spin Glasses
Published in Communications in mathematical physics (01-07-2018)“…We show that mixing for local, reversible dynamics of mean field spin glasses is exponentially slow in the low temperature regime. We introduce a notion of…”
Get full text
Journal Article -
2
Landscape complexity beyond invariance and the elastic manifold
Published in Communications on pure and applied mathematics (01-02-2024)“…This paper characterizes the annealed, topological complexity (both of total critical points and of local minima) of the elastic manifold. This classical model…”
Get full text
Journal Article -
3
Long random matrices and tensor unfolding
Published in The Annals of applied probability (01-12-2023)“…In this paper, we consider the singular values and singular vectors of low rank perturbations of large rectangular random matrices, in the regime the matrix is…”
Get full text
Journal Article -
4
Bounding Flows for Spherical Spin Glass Dynamics
Published in Communications in mathematical physics (01-02-2020)“…We introduce a new approach to studying spherical spin glass dynamics based on differential inequalities for one-time observables. Using this approach, we…”
Get full text
Journal Article -
5
Phase Transition of the Largest Eigenvalue for Nonnull Complex Sample Covariance Matrices
Published in The Annals of probability (01-09-2005)“…We compute the limiting distributions of the largest eigenvalue of a complex Gaussian sample covariance matrix when both the number of samples and the number…”
Get full text
Journal Article -
6
EXTREME GAPS BETWEEN EIGENVALUES OF RANDOM MATRICES
Published in The Annals of probability (01-07-2013)“…This paper studies the extreme gaps between eigenvalues of random matrices. We give the joint limiting law of the smallest gaps for Haar-distributed unitary…”
Get full text
Journal Article -
7
Lyons-Pemantle-Peres Monotonicity Problem for High Biases
Published in Communications on pure and applied mathematics (01-04-2014)“…The speed v(β) of a β‐biased random walk on a Galton‐Watson tree without leaves is increasing for β ≥ 1160. © 2014 Wiley Periodicals, Inc…”
Get full text
Journal Article -
8
Scaling limit for the ant in a simple high-dimensional labyrinth
Published in Probability theory and related fields (01-06-2019)“…We prove that, after suitable rescaling, the simple random walk on the trace of a large critical branching random walk in Z d converges to the Brownian motion…”
Get full text
Journal Article -
9
Randomly biased walks on subcritical trees
Published in Communications on pure and applied mathematics (01-11-2012)“…As a model of trapping by biased motion in random structure, we study the time taken for a biased random walk to return to the root of a subcritical…”
Get full text
Journal Article -
10
Universality and extremal aging for dynamics of spin glasses on subexponential time scales
Published in Communications on pure and applied mathematics (01-01-2012)“…We consider random hopping time (RHT) dynamics of the Sherrington‐Kirkpatrick (SK) model and p‐spin models of spin glasses. For any of these models and for any…”
Get full text
Journal Article -
11
The arcsine law as a universal aging scheme for trap models
Published in Communications on pure and applied mathematics (01-03-2008)“…We give a general proof of aging for trap models using the arcsine law for stable subordinators. This proof is based on conditions on the potential theory of…”
Get full text
Journal Article -
12
Preface: From the Director
Published in Communications on pure and applied mathematics (01-07-2012)Get full text
Journal Article -
13
Geometry and Temperature Chaos in Mixed Spherical Spin Glasses at Low Temperature: The Perturbative Regime
Published in Communications on pure and applied mathematics (01-08-2020)“…We study the Gibbs measure of mixed spherical p‐spin glass models at low temperature, in (part of) the 1‐RSB regime, including, in particular, models close to…”
Get full text
Journal Article -
14
The Landscape of the Spiked Tensor Model
Published in Communications on pure and applied mathematics (01-11-2019)“…We consider the problem of estimating a large rank‐one tensor u⊗k ∈ (ℝn)⊗k, k ≥ 3, in Gaussian noise. Earlier work characterized a critical signal‐to‐noise…”
Get full text
Journal Article -
15
Cugliandolo-Kurchan equations for dynamics of Spin-Glasses
Published in Probability theory and related fields (01-12-2006)“…We study the Langevin dynamics for the family of spherical p-spin disordered mean-field models of statistical physics. We prove that in the limit of system…”
Get full text
Journal Article -
16
ALGORITHMIC THRESHOLDS FOR TENSOR PCA
Published in The Annals of probability (01-07-2020)“…We study the algorithmic thresholds for principal component analysis of Gaussian k-tensors with a planted rank-one spike, via Langevin dynamics and gradient…”
Get full text
Journal Article -
17
Counting equilibria of large complex systems by instability index
Published in Proceedings of the National Academy of Sciences - PNAS (24-08-2021)“…We consider a nonlinear autonomous system of N ≫ 1 degrees of freedom randomly coupled by both relaxational (“gradient”) and nonrelaxational (“solenoidal”)…”
Get full text
Journal Article -
18
Complex Energy Landscapes in Spiked-Tensor and Simple Glassy Models: Ruggedness, Arrangements of Local Minima, and Phase Transitions
Published in Physical review. X (01-01-2019)“…We study rough high-dimensional landscapes in which an increasingly stronger preference for a given configuration emerges. Such energy landscapes arise in…”
Get full text
Journal Article -
19
Random Matrices and Complexity of Spin Glasses
Published in Communications on pure and applied mathematics (01-02-2013)“…We give an asymptotic evaluation of the complexity of spherical p‐spin spin glass models via random matrix theory. This study enables us to obtain detailed…”
Get full text
Journal Article -
20
High‐dimensional limit theorems for SGD: Effective dynamics and critical scaling
Published in Communications on pure and applied mathematics (01-03-2024)“…We study the scaling limits of stochastic gradient descent (SGD) with constant step‐size in the high‐dimensional regime. We prove limit theorems for the…”
Get full text
Journal Article