Electron. J. Differential Equations, Vol. 2025 (2025), No. 10, pp. 1-60.

A priori estimates for the linearized relativistic Euler equations with a physical vacuum boundary and an ideal gas equation of state

Brian B. Luczak

Abstract:
In this article, we will provide a result on the relativistic Euler equations for an ideal gas equation of state and a physical vacuum boundary. More specifically, we will prove a priori estimates for the linearized system in weighted Sobolev spaces. Our focus will be on choosing the correct thermodynamic variables, developing a weighted book-keeping scheme, and then proving energy estimates for the linearized system.

Submitted November 27, 2024. Published January 27, 2025.
Math Subject Classifications: 35Q75, 35Q35, 35Q31, 35R37.
Key Words: Relativistic Euler equations; physical vacuum boundary; ideal gas equation of state.
DOI: 10.58997/ejde.2025.10

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Brian B. Luczak
University of Chicago Laboratory Schools
1362 E. 59th St.
Chicago, IL 60637, USA
email: bluczak@uchicago.edu

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