Volume 40 (1) (2019)

• Anna Chiara Lai
  Internal observability of the wave equation in tiled domains.
  1-16
• Ezio Stagnaro
  A regular threefold of general type with p_g=0 and P₂=12.
  17-55
• Luigia Di Terlizzi, Anna Maria Pastore, Robert A. Wolak
  Submersions involving some special classes of K-manifolds.
  57-70