journal6 ›› 2010, Vol. 31 ›› Issue (5): 22-25.

• 数学 • 上一篇    下一篇

Hamilton-Jacobi 方程特征线的性质 II

  

  1. (华北电力大学数理系,北京102206)
  • 出版日期:2010-09-25 发布日期:2012-04-12

Properties of the Charactristics of Hamilton-Jacobi Equations II

  1. (Department of Mathematics and Physics,North China Electric Power University,Beijing 102206,China)
  • Online:2010-09-25 Published:2012-04-12
  • About author:ZHAO Yin-chuan (1977-),male,was born in Shaoxing City,Zhejiang Province,instructor of Department of Mathematics and Physics,North China Electric Power University;research area is nonlinear partial equation.
  • Supported by:

    National Natural Foundation of China (10926067;70901025)

摘要:研究了带凸Hamiltonian的高维Hamilton-Jacobi (HJ)方程特征线的性质.证明了所有的特征线分2类,其中一类永远不会碰到奇异点,另一类将在有限的时间内碰到奇异点.

关键词: Hamilton-Jacobi 方程, 特征线, 非退化(退化)最小值点, Hopf-Lax公式

Abstract: Properties of the characteristics of  the Hamilton-Jacobi (HJ) equations of multi-dimensional space variables with convex Hamiltonians are studied.It is  proved that  there are only two kinds of characteristics:one never touches the singularity point,and  the other  touches the singularity point in a finite time.

Key words: Hamilton-Jacobi equation, characteristics, non-degenerate (degenerate) minimizing point, Hopf-Lax formula

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