Solutions of a Nonlinear Dirac Equation with External Fields

Solutions of a Nonlinear Dirac Equation with External Fields
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DOI:
10.1007/s00205-008-0163-z
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发表时间:
2008-08
影响因子:
2.5
通讯作者:
Yanheng Ding;B. Ruf
Yanheng Ding;B. Ruf
中科院分区:
数学1区
文献类型:
--
作者:
Yanheng Ding;B. Ruf

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我们研究了具有描述外场的矩阵势的定常Dirac方程,在没有任何周期性假设的情况下,用渐近二次非线性模型描述了各种类型的相互作用。我们的讨论包括库仑势作为一种特殊情况,并为半经典的情况下,我们处理的标量场。利用临界点理论得到了稳定解的存在性和多重性结果。
We study the stationary Dirac equation with a matrix potential describing the external field, and a asymptotically quadratic nonlinearity modelling various types of interaction without any periodicity assumption. Our discussion includes the Coulomb potential as a special case, and for the semiclassical situation we handle the scalar fields. We obtain existence and multiplicity results of stationary solutions via critical point theory.