Figure 8From: Internal feedback stabilization of multi-dimensional wave equations with a boundary delay: a numerical studyThe energy \(E_{0}(t)\) of the wave system (1.6)-(1.10) with: a) various delays when \(a(x)=1\) and for \(k=-0.2\); b) different delays when \(a(x)=1\) and for \(k=0.2\); c) several delays when \(a(x)=3\) and for \(k=-0.2\); d) various delays when \(a(x)=3\) and for \(k=0.2\)Back to article page