Null controllability of the linear system of thermoelastic plates

We present a null controllability result for the linear system of thermoelastic plates when we consider two different controls supported in some, possibly different, open sets. The main idea is to write the solutions and controls in a series form where each term satisfies a new problem, still coupled, but that can be written in cascade form. The result is then obtained combining the null controllability of these new systems with the convergence of the series.