New thresholds separate diffusion-wave and non-diffusive regimes for low-regularity solutions of the structurally damped wave equation u_tt - Δu + Δ²u_t = 0.
Karch, Selfsimilar profiles in large time asymptotics of solutions to damped wave equa- tions, Studia Math
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Thresholds for low regularity solutions to wave equations with structural damping
New thresholds separate diffusion-wave and non-diffusive regimes for low-regularity solutions of the structurally damped wave equation u_tt - Δu + Δ²u_t = 0.