5D能量临界wave equation中孤子碰撞的非弹性
Inelasticity of soliton collisions for the 5D energy critical wave equation
摘要：
对于5D中的聚焦能量临界波动方程，我们构造了一个解，它显示了除标度相同、符号相反的两个孤子的特殊情况外，任何两个孤子碰撞的非弹性性质。除了它自己的兴趣作为一个不可积模型的孤子碰撞的第一个严格的研究，四次gKdV方程的情况下被部分处理的作者在以前的作品，这一结果可以被看作是一个更广泛的计划的一部分，旨在建立孤子分辨率猜想的临界波动方程。Duyckaerts、Kenig和Merle已经在3D径向情形和3D、4D和5D的一般情形中沿着时间序列建立了这个猜想。研究碰撞的性质需要两孤子问题的精细近似解和精确确定其空间渐近性。为了证明非弹性，将这些渐近性与能量通道法相结合。
英文摘要：
For the focusing energy critical wave equation in 5D, we construct a solution showing the inelastic nature of the collision of any two solitons, except the special case of two solitons of same scaling and opposite signs. Beyond its own interest as one of the first rigorous studies of the collision of solitons for a non-integrable model, the case of the quartic gKdV equation being partially treated by the authors in previous works, this result can be seen as part of a wider program aiming at establishing the soliton resolution conjecture for the critical wave equation. This conjecture has already been established in the 3D radial case and in the general case in 3, 4 and 5D along a sequence of times by Duyckaerts, Kenig and Merle. The study of the nature of the collision requires a refined approximate solution of the two-soliton problem and a precise determination of its space asymptotics. To prove inelasticity, these asymptotics are combined with the method of channels of energy.
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