
doi: 10.1007/bf02085766
We calculate the entropy changes of an imperfect-fluid gravitational collapsing system in the axial symmetric situation, analyzing a practical example. We conclude that the entropy of the collapsing system decreases at the beginning of the collapse and then increases very near the system's horizon.
Macroscopic interaction of the gravitational field with matter (hydrodynamics, etc.), imperfect-fluid
Macroscopic interaction of the gravitational field with matter (hydrodynamics, etc.), imperfect-fluid
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