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Qing-Song Zhao

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Preprint Sep 2026

Density Collapse and Gradient Catastrophe in a One-Dimensional Euler--Poisson--Cattaneo System

We study finite-time singularity formation for a one-dimensional Euler--Poisson system in Lagrangian coordinates with Cattaneo heat conduction and quadratic heat-flux corrections in the pressure and internal energy. Under the structural choice $\kappa=\kappa_0v$, two different breakdown mechanisms are obtained. First,...

Qing-Song Zhao · 0 citations

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