Internal observability of the wave equation in tiled domains.
Anna Chiara Lai

Abstract. We investigate the internal observability of the wave equation with Dirichlet boundary conditions in tilings. The paper includes a general result relating internal observability problems in general domains to their tiles, and a discussion of the case in which the domain is the 30-60-90 triangle.

Rend. Mat. Appl. (7) 40 (2019) 1-16; pdf