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Observability of heat processes by transmutation without geometric restrictions
The goal of this note is to explain how transmutation techniques (originally introduced in  in the context of the control of the heat equation, inspired on the classical Kannai transform, and recently revisited in  ...
A systematic method for building smooth controls for smooth data
We prove a regularity result for an abstract control problem z' = Az + Bv with initial datum z(0) = z0 in which the goal is to determine a control v such that z(T) = 0. Under standard admissibility and observability ...