Acta mathematica scientia,Series A ›› 2018, Vol. 38 ›› Issue (6): 1239-1244.

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Finite Time Blow up of Solutions for Nonlinear Wave Equation with General Nonlinearity for Arbitrarily Positive Initial Energy

Yanbing Yang1,2,Wei Lian3,Shaobin Huang2,Runzhang Xu1,*()   

  1. 1 College of Science, Harbin Engineering University, Harbin 150001
    2 College of Computer Science and Technology, Harbin Engineering University, Harbin 150001
    3 College of Automation, Harbin Engineering University, Harbin 150001
  • Received:2017-08-29 Online:2018-12-26 Published:2018-12-27
  • Contact: Runzhang Xu E-mail:xurunzh@163.com
  • Supported by:
    the NSFC(11471087);the China Postdoctoral Science Foundation(2013M540270);the Heilongjiang Postdoctoral Foundation(LBH-Z15036)

Abstract:

This paper investigates the finite time blow up of solutions for the initial boundary value problem of a class of some nonlinear wave equations with general nonlinearity at high initial energy level. By employing the classical concavity method, we establish some new sufficient conditions on initial data such that the solution with arbitrarily positive initial energy blows up in finite time.

Key words: Wave equation, High initial energy, Finite time blow up, General nonlinearity

CLC Number: 

  • O175.29
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