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Regularity Aspects of Temperature in Heat-Conducting Fluid Systems via De Giorgi Methods
Abstract
This paper is concerned with the conditional Hölder regularity of the temperature for the heat-conducting compressible Navier-Stokes system, where the pressure takes a complete form that includes the Stefan-radiation correction. Under minimal assumptions on the density and velocity, we prove that any weak solution automatically exhibits Hölder continuity in the temperature component. This constitutes the main result of the work and is achieved by an application of the De Giorgi method. As a consequence of this conditional regularity, we establish the global-in-time existence of a regular, unique solution to a simplified system for the compressible potential flow of a heat-conducting fluid, valid for arbitrarily large initial data.
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BibTeX
@misc{chaudhuri2026regularity,
title = {{Regularity Aspects of Temperature in Heat-Conducting Fluid Systems via De Giorgi Methods}},
author = {Nilasis Chaudhuri and Piotr B. Mucha and Tomasz Piasecki and Jiakun Yang},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.23802},
eprint = {2610.23802},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.23802},
}
RIS
TY - UNPB
TI - Regularity Aspects of Temperature in Heat-Conducting Fluid Systems via De Giorgi Methods
AU - Nilasis Chaudhuri
AU - Piotr B. Mucha
AU - Tomasz Piasecki
AU - Jiakun Yang
PY - 2026
DA - 2026/10/16
PB - arXiv
DO - 10.48550/arxiv.2610.23802
UR - https://arxiv.org/abs/2610.23802
AB - This paper is concerned with the conditional Hölder regularity of the temperature for the heat-conducting compressible Navier-Stokes system, where the pressure takes a complete form that includes the Stefan-radiation correction. Under minimal assumptions on the density and velocity, we prove that any weak solution automatically exhibits Hölder continuity in the temperature component. This constitutes the main result of the work and is achieved by an application of the De Giorgi method. As a consequence of this conditional regularity, we establish the global-in-time existence of a regular, unique solution to a simplified system for the compressible potential flow of a heat-conducting fluid, valid for arbitrarily large initial data.
ER -