The method of finite spheres in acoustic wave propagation through nonhomogeneous media: INF-SUP stability conditions
The method of finite spheres in acoustic wave propagation through nonhomogeneous media: INF-SUP stability conditions
This paper the analysis and use of these conditions. Since the conditions involve norms of functionals in fractional Sobolev spaces, we derive ‘stronger’ conditions that are simpler in form. These new conditions pave the way for the inf-sup testing, a tool for assessing the stability of the discretized problems.