数学物理学报(英文版) ›› 2018, Vol. 38 ›› Issue (3): 745-755.doi: 10.1016/S0252-9602(18)30780-X

• 论文 •    下一篇

GLOBAL EXISTENCE OF CLASSICAL SOLUTIONS TO THE HYPERBOLIC GEOMETRY FLOW WITH TIME-DEPENDENT DISSIPATION

孔德兴1, 刘琦2   

  1. 1. School of Mathematical Sciences, Zhejiang University, Hangzhou 310027, China;
    2. Department of Applied Mathematics, College of Science, Zhongyuan University of Technology, Zhengzhou 450007, China
  • 收稿日期:2016-12-12 修回日期:2017-09-20 出版日期:2018-06-25 发布日期:2018-06-25
  • 通讯作者: Qi LIU E-mail:21106052@zju.edu.cn
  • 作者简介:Dexing KONG,E-mail:dkong@zju.edu.cn
  • 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 Science Foundation in Higher Education of Henan (18A110036).

GLOBAL EXISTENCE OF CLASSICAL SOLUTIONS TO THE HYPERBOLIC GEOMETRY FLOW WITH TIME-DEPENDENT DISSIPATION

Dexing KONG1, Qi LIU2   

  1. 1. School of Mathematical Sciences, Zhejiang University, Hangzhou 310027, China;
    2. Department of Applied Mathematics, College of Science, Zhongyuan University of Technology, Zhengzhou 450007, China
  • Received:2016-12-12 Revised:2017-09-20 Online:2018-06-25 Published:2018-06-25
  • Contact: Qi LIU E-mail:21106052@zju.edu.cn
  • 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 Science Foundation in Higher Education of Henan (18A110036).

摘要:

In this article, we investigate the hyperbolic geometry flow with time-dependent dissipation
(2gij)/(∂t2) + μ/((1 + t)λ) (∂gij)/∂t=-2Rij,
on Riemann surface. On the basis of the energy method, for 0 < λ ≤ 1, μ > λ + 1, we show that there exists a global solution gij to the hyperbolic geometry flow with time-dependent dissipation with asymptotic flat initial Riemann surfaces. Moreover, we prove that the scalar curvature R(t, x) of the solution metric gij remains uniformly bounded.

关键词: Hyperbolic geometry flow, time-dependent damping, classical solution, energy method, global existence

Abstract:

In this article, we investigate the hyperbolic geometry flow with time-dependent dissipation
(2gij)/(∂t2) + μ/((1 + t)λ) (∂gij)/∂t=-2Rij,
on Riemann surface. On the basis of the energy method, for 0 < λ ≤ 1, μ > λ + 1, we show that there exists a global solution gij to the hyperbolic geometry flow with time-dependent dissipation with asymptotic flat initial Riemann surfaces. Moreover, we prove that the scalar curvature R(t, x) of the solution metric gij remains uniformly bounded.

Key words: Hyperbolic geometry flow, time-dependent damping, classical solution, energy method, global existence