Wave Speed in the Macroscopic Extended Model for Ultrarelativistic Gases
Mathematical Physics
2010-12-08 v1 math.MP
Abstract
An exact macroscopic extended model for ultrarelativistic gases, with an arbitrary number of moments, is present in the literature. Here we exploit equations determining wave speeds for that model. We find interesting results; for example, the whole system for their determination can be divided into independent subsystems and some, but not all, wave speeds are expressed by rational numbers. Moreover, the extraordinary property that these wave speeds for the macroscopic model are the same of those in the kinetic model, is proved.
Cite
@article{arxiv.1012.1482,
title = {Wave Speed in the Macroscopic Extended Model for Ultrarelativistic Gases},
author = {F. Borghero and F. Demontis and S. Pennisi},
journal= {arXiv preprint arXiv:1012.1482},
year = {2010}
}
Comments
22 pages