works on

From the 1 of 9 linked papers with an AI index.

activity
20242026
collaborators

9 papers

math.AP2026

On the decay estimates of a nonlocal convection-diffusion Hamer system

Timothée Crin-Barat, Belkacem Said-Houari

The paper proves global well‑posedness and optimal time‑decay rates for the multi‑dimensional Hamer model of radiating gases, using hybrid Besov space techniques and relaxing previ…

math.AP2026

Pressure and temperature relaxation limit for a one-velocity Baer-Nunziato model

Cosmin Burtea, Timothée Crin-Barat, Pierre Gonin--Joubert

The dynamics of two-phase flows out of mechanical and thermal equilibrium are described by a partially dissipative first-order quasilinear system with stiff interaction terms assoc…

math.AP2026

The compressible Euler system with damping in hybrid Besov spaces: global well-posedness and relaxation limit

Timothée Crin-Barat, Zihao Song

We investigate the global well-posedness of the compressible Euler system with damping in Rd (d\geq1) and its relaxation limit toward the porous medium equation. In [12], the first…

math.AP2026

On the relaxation towards mechanical equilibrium for two-pressure compressible flows

Cosmin Burtea, Timothée Crin-Barat, Pierre Gonin--Joubert

We introduce a symmetrization of a one-velocity two-pressures Baer-Nunziato type model for mixtures of barotropic compressible fluids. It allows us to justify the zero compaction v…

math.AP2025

Compressible Euler equations with time-dependent damping in the critical regularity setting: global well-posedness and strong relaxation limit

Timothée Crin-Barat, Xinghong Pan, Ling-Yun Shou +1

We investigate the relaxation problem and the diffusion phenomenon for the compressible Euler system with a time-dependent damping coefficient of the form in $…

math.AP2025

Global convergence rates in the relaxation limits for the compressible Euler and Euler-Maxwell systems in Sobolev spaces

Timothée Crin-Barat, Yue-Jun Peng, Ling-Yun Shou

We study two relaxation problems in the class of partially dissipative hyperbolic systems: the compressible Euler system and the compressible Euler-Maxwell system. In classical Sob…