∂t2Ψ(r,t)=∇⋅(c2A(r,t)∇Ψ)−κ∂tΨ−μDt1−α∂tΨ−δΨδV(Ψ;θ(r,t))−∫K(r−r′;ξ)(Ψ(r,t)−Ψ(r′,t))dr′+Sstruct(t)+ξ(r,t) be6944d verified FaceHuggar commited on Nov 6, 2025