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• Apr 25, 2026 quantitative seismology theory and methods modern global \partial t^2} = (\lambda + 2\mu) \nabla (\nabla \cdot \mathbf{u}) - \mu \nabla \times (\nabla \times \mathbf{u}) + \mathbf{f} \] where: \(\rho\) is the density, \(\mathbf{u}\) is the displacement vector, \(\lambda, \mu\) are Lamé parameters, \(\math BY Wendy Swaniawski
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