We study the initial-boundary value problem for a system of nonlinear wave equations, involving nonlinear damping terms, in a bounded domain with the initial and Dirichlet boundary conditions. The nonexistence of global solutions is discussed under some conditions on the given parameters. Estimates on the lifespan of solutions are also given.
Submitted February 17, 2009. Published September 1, 2009.
Math Subject Classifications: 35L70.
Key Words: Nonlinear damping; wave equation; blow-up; lifespan.
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| Shun-Tang Wu |
General Education Center
National Taipei University of Technology
Taipei, 106, Taiwan
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