Global Solutions to the Ultra-Relativistic Euler Equations
Skip to main content
Open Access Publications from the University of California

Department of Mathematics

Graduate bannerUC Davis

Global Solutions to the Ultra-Relativistic Euler Equations

Published Web Location
No data is associated with this publication.

We prove a global existence theorem for the $3\times 3$ system of relativistic Euler equations in one spacial dimension. It is shown that in the ultra-relativistic limit, there is a family of equations of state that satisfy the second law of thermodynamics for which solutions exist globally. With this limit and equation of state, which includes equations of state for both an ideal gas and one dominated by radiation, the relativistic Euler equations can be analyzed by a Nishida-type method leading to a large data existence theorem, including the entropy and particle number evolution, using a Glimm scheme. Our analysis uses the fact that the equations of state are of the form $p=p(n,S)$, but whose form simplifies to $p=a^{2}\rho$ when viewed as a function of $\rho$ alone.

Item not freely available? Link broken?
Report a problem accessing this item