Acta mathematica scientia,Series B ›› 2011, Vol. 31 ›› Issue (6): 2265-2277.doi: 10.1016/S0252-9602(11)60398-6

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THE LARGE TIME GENERIC FORM OF THE SOLUTION TO HAMILTON-JACOBI EQUATIONS

 Wang Jinghua1, Wen Hairui2, Zhao Yinchuan3   

  1. 1.Academy of Mathematics and System Sciences, The Chinese Academy of Sciences, Beijing 100190, China;2.Department of Mathematics, Beijing Institute of Technology, Beijing 100081, China;3.Department of Mathematics and Physics, North China Electric Power University, Beijing 102206, China
  • Received:2011-09-20 Online:2011-11-20 Published:2011-11-20
  • Contact: Wen Hairui,wenhr@bit.edu.cn E-mail:jwang@amss.ac.cn;wenhr@bit.edu.cn;zyc747250@hotmail.com
  • Supported by:

    This research was supported by National Natural Science Foundation of China (10871133, 11071246 and 11101143), Fundamental Research Funds of the Central Universities (09QL48). †Corresponding author: Wen Hairui.

Abstract:

We use Hopf-Lax formula to study local regularity of solution to Hamilton-Jacobi (HJ) equations of multi-dimensional space variables with convex Hamiltonian. Then we give the large time generic form of the solution to HJ equation, i.e. for most initial data there exists a constant T > 0, which depends only on the Hamiltonian and initial datum, for t > T the solution of the IVP (1.1) is smooth except for a smooth n-dimensional hypersurface, across which Du(x, t) is discontinuous. And we show that the hypersurface tends asymptotically to a given hypersurface with rate t−1/4 .

Key words: Hopf-Lax formula, Hamilton-Jacobi equations, local regularity, large time generic form

CLC Number: 

  • 49L25
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