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arXiv math-ph/0504077math-phmath.MP
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冷等离子体中波传播模型的能量不等式

Energy inequalities for a model of wave propagation in cold plasma

Thomas H. Otway

摘要:

导出了等离子体物理中椭圆-双曲算子的能量不等式。这些不等式意味着各种闭边值问题的分布和弱解的存在性。证明了一类相关的Keldysh方程的存在性定理,并讨论了获得唯一性的期望方法的失败。证明使用的想法最近推出的Lupo,Morawetz和佩恩的广义Tricomi算子。在开边界条件下,强解的存在性也得到了证明。

英文摘要:

Energy inequalities are derived for an elliptic-hyperbolic operator arising in plasma physics. These inequalities imply the existence of distribution and weak solutions to various closed boundary-value problems. An existence theorem is proven for a related class of Keldysh equations, and the failure of expected methods for obtaining uniqueness is discussed. The proofs use ideas recently introduced by Lupo, Morawetz, and Payne for a generalized Tricomi operator. The existence of strong solutions under open boundary conditions is also proven.

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