Global solutions to the supercooled Stefan problem with blow-ups: regularity and uniqueness

F Delarue, S Nadtochiy, M Shkolnikov - Probability and Mathematical …, 2022 - msp.org
We consider the supercooled Stefan problem, which captures the freezing of a supercooled
liquid, in one space dimension. A probabilistic reformulation of the problem allows us to …

Exact solution and precise asymptotics of a Fisher–KPP type front

J Berestycki, É Brunet, B Derrida - Journal of Physics A …, 2017 - iopscience.iop.org
The present work concerns a version of the Fisher–KPP equation where the nonlinear term
is replaced by a saturation mechanism, yielding a free boundary problem with mixed …

Hydrodynamics of the N-BBM Process

A De Masi, PA Ferrari, E Presutti… - International workshop on …, 2017 - Springer
Abstract The Branching Brownian Motion (BBM) process consists of particles performing
independent Brownian motions in\mathbb R, and each particle creating a new one at rate 1 …

A deep learning approach for the computation of curvature in the level-set method

LÁ Larios-Cárdenas, F Gibou - SIAM Journal on Scientific Computing, 2021 - SIAM
We propose a deep learning strategy to estimate the mean curvature of two-dimensional
implicit interfaces in the level-set method. Our approach is based on fitting feed-forward …

Stefan problem for a nonergodic facilitated exclusion process

O Blondel, C Erignoux, M Simon - Probability and Mathematical Physics, 2021 - msp.org
We consider the facilitated exclusion process, which is a nonergodic, kinetically constrained
exclusion process. We show that in the hydrodynamic limit, its macroscopic behavior is …

Non local branching Brownian motions with annihilation and free boundary problems

A De Masi, PA Ferrari, E Presutti, N Soprano-Loto - 2019 - projecteuclid.org
We study a system of branching Brownian motions on R with annihilation: at each branching
time a new particle is created and the leftmost one is deleted. The case of strictly local …

The inverse first-passage time problem as hydrodynamic limit of a particle system

A Klump - Methodology and Computing in Applied Probability, 2023 - Springer
We study a particle system without branching but with selection at timepoints depending on
a given probability distribution on the positive real line. The hydrodynamic limit of the particle …

Motion by curvature and large deviations for an interface dynamics on ℤ2

B Dagallier - Probability and Mathematical Physics, 2024 - msp.org
We study large deviations for a Markov process on curves in ℤ 2 mimicking the motion of an
interface. Our dynamics can be tuned with a parameter β, which plays the role of an inverse …

Cross-overs of Bramson's shift at the transition between pulled and pushed fronts

B Derrida - Journal of Statistical Physics, 2023 - Springer
The Bramson logarithmic shift of the position of pulled fronts is a universal feature common
to a large class of monostable traveling wave equations. As one varies the non-linearities it …

Machine learning algorithms for three-dimensional mean-curvature computation in the level-set method

LÁ Larios-Cárdenas, F Gibou - Journal of Computational Physics, 2023 - Elsevier
We propose a data-driven mean-curvature solver for the level-set method. This work is the
natural extension to R 3 of our two-dimensional error-correcting strategy presented in Larios …