The authors establish sharp conditions on moduli of continuity for global existence versus finite-time blow-up in a weakly coupled system of structurally damped wave equations with critical nonlinearities, together with sharp lifespan estimates.
Dao, Existence and nonexistence of global solutions for a wave system with different structural damping terms, Vietnam J
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Blow-up and sharp lifespan estimates to the weakly coupled system of structurally damped wave equations with critical nonlinearities
The authors establish sharp conditions on moduli of continuity for global existence versus finite-time blow-up in a weakly coupled system of structurally damped wave equations with critical nonlinearities, together with sharp lifespan estimates.