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由一个对角型的度规出发,给出了一组严格的引力双孤立波解。这组解是处处正则和稳定的,它们描写两个分别沿正z方向和负z方向的光速传播的孤立波,而且在彼此碰撞后不会改变自己形状并继续传播,文章最后还讨论了这组解相应的时空奇异性和能量正定性问题。According to a diagonal metric tensor, a set of exact gravitational soliton solutions of Einstein's equations in vacuum is obtained, which discribe two solitons propagating with constant velocity in opposite directions. After collision, they will continue to propagate without changing their original shape. Firally, the singularity and energy density of these solutions are also discussed.
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