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arXiv 2201.02683math.APmath-phmath.MP
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在1+1维主Chiral模型中的全局存在性与长时间行为及其在孤子中的应用

Global Existence and Long Time Behavior in the 1+1 dimensional Principal Chiral Model with Applications to Solitons

Universidad de Chile(智利大学)

Jessica Trespalacios

AI总结:

本文研究了1+1维主Chiral模型的全局存在性与长时间行为,通过构建virial函数描述光滑解的衰减,并探讨了其在孤子中的应用。

摘要:

在本文中,我们考虑了作为真空爱因斯坦场方程简化得到的1+1维向量值主Chiral场模型(PCF),并在Belinski-Zakharov对称性下进行研究。PCF是一个可积模型,但对其演化的严格描述仍不完善。本文提供了在适当选择的能量空间中局部解的存在性,以及在一定非退化条件下的小全球光滑解。我们还构建了virial函数,为光滑全球解在光锥内的衰减提供了清晰描述。最后,一些应用被展示在PCF孤子的情况中,这是研究其非线性稳定性的第一步。

英文摘要:

In this paper, we consider the 1+1 dimensional vector valued Principal Chiral Field model (PCF) obtained as a simplification of the Vacuum Einstein Field equations under the Belinski-Zakharov symmetry. PCF is an integrable model, but a rigorous description of its evolution is far from complete. Here we provide the existence of local solutions in a suitable chosen energy space, as well as small global smooth solutions under a certain non degeneracy condition. We also construct virial functionals which provide a clear description of decay of smooth global solutions inside the light cone. Finally, some applications are presented in the case of PCF solitons, a first step towards the study of its nonlinear stability.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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