摘要
本文用一能量动量膺张量族和无迹能量动量张量讨论稳态轴对称单孤子解和一双孤子解的能量密度的非负性问题．无迹能量动量张量给出非负的能量密度，而膺张量族给出的能量密度不是非负的．
A family of energy-momentum pseudotensors and a covariant traceless energy-momentum tensor are used for the discussion of the non-negative property of the energy densities of an one-soliton solution and a two-soliton solution. The energy densities of both the two solutions obtained from the traceless energy-momentum tensor are non-negative, but the energy densities derived from the pseudotensor family are not non-negative.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1995年第2期32-37,共6页
Journal of Shanghai Jiaotong University
