Nonwandering continuum possessing the Wada property

Dynamic systems acting on the plane and possessing the Wada property have been observed. There exist only two topological types, symmetric and antisymmetric, of dissipative dynamic systems with the nonwandering continuum being a common boundary of three regions. An antisymmetric dynamic system with the nonwandering continuum can be transformed into a dynamic system with an invariant vortex street without fixed points. A further factorization procedure allows obtaining a dynamic system having the Wada property with the nonwandering continuum being a common boundary of any finite number of regions. Moreover, following this strategy, it is possible to construct a Birkhoff curve that is a common boundary of two regions (problem $1100$).