数学物理学报(英文版) ›› 2017, Vol. 37 ›› Issue (3): 679-694.doi: 10.1016/S0252-9602(17)30030-9

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LIFE-SPAN OF CLASSICAL SOLUTIONS TO HYPERBOLIC GEOMETRY FLOW EQUATION IN SEVERAL SPACE DIMENSIONS

孔德兴1,2, 刘琦1, 宋长明2   

  1. 1. School of Mathematical Sciences, Zhejiang University, Hangzhou 310027, China;
    2. College of Science, Zhongyuan University of Technology, Zhengzhou 450007, China
  • 收稿日期:2015-11-04 出版日期:2017-06-25 发布日期:2017-06-25
  • 通讯作者: Qi LIU E-mail:21106052@zju.edu.cn
  • 作者简介:Dexing KONG,E-mail:dkong@zju.edu.cn;Changming SONG,E-mail:cmsongh@163.com
  • 基金资助:

    This work is supported in part by the NNSF of China (11271323,91330105),the Zhejiang Provincial Natural Science Foundation of China (LZ13A010002),and the Henan Provincial Natural Science Foundation of China (152300410226).

LIFE-SPAN OF CLASSICAL SOLUTIONS TO HYPERBOLIC GEOMETRY FLOW EQUATION IN SEVERAL SPACE DIMENSIONS

Dexing KONG1,2, Qi LIU1, Changming SONG2   

  1. 1. School of Mathematical Sciences, Zhejiang University, Hangzhou 310027, China;
    2. College of Science, Zhongyuan University of Technology, Zhengzhou 450007, China
  • Received:2015-11-04 Online:2017-06-25 Published:2017-06-25
  • Supported by:

    This work is supported in part by the NNSF of China (11271323,91330105),the Zhejiang Provincial Natural Science Foundation of China (LZ13A010002),and the Henan Provincial Natural Science Foundation of China (152300410226).

摘要:

In this article, we investigate the lower bound of life-span of classical solutions of the hyperbolic geometry flow equations in several space dimensions with "small" initial data. We first present some estimates on solutions of linear wave equations in several space variables. Then, we derive a lower bound of the life-span of the classical solutions to the equations with "small" initial data.

关键词: Hyperbolic geometry flow, classical solution, life-span

Abstract:

In this article, we investigate the lower bound of life-span of classical solutions of the hyperbolic geometry flow equations in several space dimensions with "small" initial data. We first present some estimates on solutions of linear wave equations in several space variables. Then, we derive a lower bound of the life-span of the classical solutions to the equations with "small" initial data.

Key words: Hyperbolic geometry flow, classical solution, life-span