2 papers
math.OC2018
The cost of controlling strongly degenerate parabolic equations
Piermarco Cannarsa, Patrick Martinez, Judith Vancostenoble
We consider the typical one-dimensional strongly degenerate parabolic operator with and , controlled either by a boundary control actin…
math.OC2017
Precise estimates for biorthogonal families under asymptotic gap conditions
Piermarco Cannarsa, Patrick Martinez, Judith Vancostenoble
A classical and useful way to study controllability problems is the moment method developed by Fattorini-Russell, based on the construction of suitable biorthogonal families. Sever…