We provide the breakdown mechanism of pressureless gases when the initial vorticity is zero. In other words, the maximum norm of the divergence and $\Vert u\Vert_{H^{\frac{1}{2}}}$ control the breakdown of the solution. Then we show that the solution must blow up for certain initial data in both non-relativistic and relativistic settings.
Wei HUO
. ON SINGULARITY FORMATION FOR 3-$D$ ZERO PRESSURE FLOW[J]. Acta mathematica scientia, Series B, 2025
, 45(3)
: 937
-950
.
DOI: 10.1007/s10473-025-0311-7
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