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arXiv 1209.3684math.AP
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等变波映射问题II大能量解的特征

Characterization of large energy solutions of the equivariant wave map problem: II

Raphael Cote, Carlos Kenig, Andrew Lawrie, Wilhelm Schlag

摘要:

本文考虑从1+2维到有限能量2-球面的1-等变波映射。我们建立了一个分类所有的度1整体解的能量是小于3倍的调和映射Q的能量。特别地,对于每个拓扑度为1的全局能量解,我们证明了该解渐近地收敛到一个重标调和映射加上一个辐射项。与我们的同伴文章一起,我们考虑有限时间爆破的情况,这给出了能量区域[E(Q),3E(Q))中所有1-等变,1度波映射的特征。

英文摘要:

We consider 1-equivariant wave maps from 1+2 dimensions to the 2-sphere of finite energy. We establish a classification of all degree 1 global solutions whose energies are less than three times the energy of the harmonic map Q. In particular, for each global energy solution of topological degree 1, we show that the solution asymptotically decouples into a rescaled harmonic map plus a radiation term. Together with our companion article, where we consider the case of finite-time blow up, this gives a characterization of all 1-equivariant, degree 1 wave maps in the energy regime [E(Q), 3E(Q)).

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