Gevrey regularity of spatially homogeneous Boltzmann equation without cutoff

Gevrey regularity of spatially homogeneous Boltzmann equation without cutoff
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无截止空间齐次玻尔兹曼方程的Gevrey正则性

DOI:
10.1016/j.jde.2012.04.023
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发表时间:
2012-01
影响因子:
2.4
通讯作者:
Yin, Zhaoyang
Yin, Zhaoyang
中科院分区:
数学2区
文献类型:
--
作者:
Zhang, Teng-Fei;Yin, Zhaoyang

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本文研究了无角度截止的空间齐次玻尔兹曼方程的Gevrey正则性。我们证明了带有麦克斯韦衰变的 C∞ 解的 Gevrey 正则性向空间齐次玻尔兹曼方程柯西问题的传播。我们这里使用的想法是基于 Morimoto-Ukai 最近论文的框架(参见 [Y. Morimoto, S. Ukai, Gevrey smoothing Effect of Solutions for Spatially 同质非线性玻尔兹曼方程无角截断,J. Pseudo-Differ. Oper. Appl. 1 (2010) 139–159]),但是我们扩展了指数 γ 的范围,满足 γ+2sε(−1,1), sε(0,1/2),在这种情况下,我们考虑 Φ(v)=|v|γ 形式的动力学因子,而不是像 Morimoto 和 Ukai 之前那样考虑 <v>γ。
In this paper, we study the Gevrey regularity of spatially homogeneous Boltzmann equation without angular cutoff. We prove the propagation of Gevrey regularity for C∞solutions with the Maxwellian decay to the Cauchy problem of spatially homogeneous Boltzmann equation. The idea we use here is based on the framework of Morimoto–Ukaiʼs recent paper (see [Y. Morimoto, S. Ukai, Gevrey smoothing effect of solutions for spatially homogeneous nonlinear Boltzmann equation without angular cutoff, J. Pseudo-Differ. Oper. Appl. 1 (2010) 139–159]), but we extend the range of the index γ satisfying γ+2s∈(−1,1), s∈(0,1/2) and in this case we consider the kinetic factor in the form of Φ(v)=|v|γinstead of 〈v〉γas Morimoto and Ukai did before.
DOI: 10.1007/s002050000083
发表时间: 2000-06
影响因子: 2.5
作者:
Radjesvarane Alexandre;L. Desvillettes;C. Villani;B. Wennberg
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