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arXiv math-ph/0304021math-phgr-qcmath.APmath.MP
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Nordström-Vlasov方程组的经典解

On classical solutions of the Nordström-Vlasov system

Simone Calogero, Gerhard Rein

摘要:

Nordström-Vlasov系统在Nordström标量引力理论的框架下描述了无碰撞粒子的自引力系综的动力学。我们证明了三维Cauchy问题古典解的存在唯一性,并建立了一个条件,保证了该解在时间上是全局的。此外,我们表明,如果一个改变的源项的场方程,这在理论上对应的情况下,排斥引力的符号,然后解决方案在有限的时间内炸毁一个大类的初始数据。最后,我们证明了在场方程中具有正确符号的一维系统的整体经典解的存在性。

英文摘要:

The Nordström-Vlasov system describes the dynamics of a self-gravitating ensemble of collisionless particles in the framework of the Nordström scalar theory of gravitation. We prove existence and uniqueness of classical solutions of the Cauchy problem in three dimensions and establish a condition which guarantees that the solution is global in time. Moreover, we show that if one changes the sign of the source term in the field equation, which heuristically corresponds to the case of a repulsive gravitational force, then solutions blow up in finite time for a large class of initial data. Finally, we prove global existence of classical solutions for the one dimensional version of the system with the correct sign in the field equation.

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