Zero-relaxation and vanishing-damping limits of pressureless Euler system

Fuente: arXiv
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Main Author: Tang, Guirong
Format: Preprint
Published: 2025
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_version_ 1866912521094430720
author Tang, Guirong
author_facet Tang, Guirong
contents We are concerned with the one-dimensional pressureless Euler system with relaxation in the Radon measure space. As the relaxation time tends to zero, the entropy solution converges to a static solution with the density converging to its initial value. As the relaxation time tends to infinity, which means the damping vanishes, the entropy solution of damped pressureless Euler system converges to that of pressureless Euler system.
format Preprint
id arxiv_https___arxiv_org_abs_2508_03198
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Zero-relaxation and vanishing-damping limits of pressureless Euler system
Tang, Guirong
Analysis of PDEs
35D30, 35L65, 35L80
We are concerned with the one-dimensional pressureless Euler system with relaxation in the Radon measure space. As the relaxation time tends to zero, the entropy solution converges to a static solution with the density converging to its initial value. As the relaxation time tends to infinity, which means the damping vanishes, the entropy solution of damped pressureless Euler system converges to that of pressureless Euler system.
title Zero-relaxation and vanishing-damping limits of pressureless Euler system
topic Analysis of PDEs
35D30, 35L65, 35L80
url https://arxiv.org/abs/2508.03198