2 problems

Consider the heterogeneous wave equation … A slow manifold for the corresponding dissipative homogenization problem is not attractive for this wave equation; the source instead con…

Let $\vec{h}(\vec{x})$ be the centre-manifold function, and suppose that the nonlinear parts are even functions of $\vec{x}$ and $\vec{y}$. Even-power leading-term conjecture. The…