数学物理学报(英文版) ›› 2013, Vol. 33 ›› Issue (2): 375-392.doi: 10.1016/S0252-9602(13)60005-3

• 论文 • 上一篇    下一篇

A NOTE ON “THE CAUCHY PROBLEM FOR COUPLED IMBQ EQUATIONS”

郭红霞|陈国旺   

  1. Department of Mathematics, Zhengzhou University, Zhengzhou 450052, China
  • 收稿日期:2011-10-10 修回日期:2012-06-29 出版日期:2013-03-20 发布日期:2013-03-20
  • 基金资助:

    The authors are supported by Tianyuan Youth Foun-dation of Mathematics (11226177), the National Natural Science Foundation of China (11271336 and 11171311), and Foundation of He’nan Educational Committee (2009C110006).

A NOTE ON “THE CAUCHY PROBLEM FOR COUPLED IMBQ EQUATIONS”

 GUO Hong-Xia, CHEN Guo-Wang   

  1. Department of Mathematics, Zhengzhou University, Zhengzhou 450052, China
  • Received:2011-10-10 Revised:2012-06-29 Online:2013-03-20 Published:2013-03-20
  • Supported by:

    The authors are supported by Tianyuan Youth Foun-dation of Mathematics (11226177), the National Natural Science Foundation of China (11271336 and 11171311), and Foundation of He’nan Educational Committee (2009C110006).

摘要:

In this article, we prove that the Cauchy problem for a N-dimensional system of nonlinear wave equations
utt aΔutt = Δf(u, v), x ∈ RN, t > 0,
vtt aΔvtt = Δg(u, v), ∈ RN, t > 0
admits a unique global generalized solution in C3([0, ∞); W m, p(RN) ∩L∞(RN)∩L2(RN))(m ≥ 0 is an integer, 1 ≤ p < 1 ) and a unique global classical solution in C3([0, ∞); W m,pL ∩L2) (m > 2 + N/p ), the sufficient conditions of the blow up of the solution in finite time are given, and also two examples are given.

关键词: N-dimensional system of nonlinear wave equations, Cauchy problem, global solution, blow up of solution

Abstract:

In this article, we prove that the Cauchy problem for a N-dimensional system of nonlinear wave equations
utt aΔutt = Δf(u, v), x ∈ RN, t > 0,
vtt aΔvtt = Δg(u, v), ∈ RN, t > 0
admits a unique global generalized solution in C3([0, ∞); W m, p(RN) ∩L∞(RN)∩L2(RN))(m ≥ 0 is an integer, 1 ≤ p < 1 ) and a unique global classical solution in C3([0, ∞); W m,pL ∩L2) (m > 2 + N/p ), the sufficient conditions of the blow up of the solution in finite time are given, and also two examples are given.

Key words: N-dimensional system of nonlinear wave equations, Cauchy problem, global solution, blow up of solution

中图分类号: 

  • 35L30