3 papers
math.AP2025
Localized and degenerate controls for the incompressible Navier-Stokes system
Vahagn Nersesyan, Manuel Rissel
We consider the global approximate controllability of the two-dimensional incompressible Navier-Stokes system driven by a physically localized and degenerate force. In other words,…
math.AP2024
Small-time global approximate controllability for incompressible MHD with coupled Navier slip boundary conditions
Manuel Rissel, Ya-Guang Wang
We study the small-time global approximate controllability for incompressible magnetohydrodynamic (MHD) flows in smoothly bounded two- or three-dimensional domains. The controls ac…
math.AP2024
Exact controllability of incompressible ideal magnetohydrodynamics in D
Manuel Rissel
This work examines the controllability of planar incompressible ideal magnetohydrodynamics (MHD). Interior controls are obtained for problems posed in doubly-connected regions; sim…