Global solutions to the supercooled Stefan problem with blow-ups: regularity and uniqueness
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 …
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 …
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 …
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 …
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 …
exclusion process. We show that in the hydrodynamic limit, its macroscopic behavior is …
Non local branching Brownian motions with annihilation and free boundary problems
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 …
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 …
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 …
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 …
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 …
natural extension to R 3 of our two-dimensional error-correcting strategy presented in Larios …