期刊
COMMUNICATIONS IN MATHEMATICAL PHYSICS
卷 330, 期 1, 页码 331-365出版社
SPRINGER
DOI: 10.1007/s00220-014-2034-9
关键词
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资金
- DGES Grant [2011-29306-C02-00, IT-305-07]
- Hausdorff Center for Mathematics of the University of Bonn
In this paper we prove that the solutions of the isotropic, spatially homogeneous Nordheim equation for bosons with bounded initial data blow up in finite time in the L (a) norm if the values of the energy and particle density are in the range of values where the corresponding equilibria contain a Dirac mass. We also prove that, in the weak solutions, whose initial data are measures with values of particle and energy densities satisfying the previous condition, a Dirac measure at the origin forms in finite time.
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