Mathematics – Analysis of PDEs
Scientific paper
2011-06-07
Mathematics
Analysis of PDEs
2 figures
Scientific paper
A well known result of Jaffard states that an arbitrary region on a torus controls, in the L2 sense, solutions of the free stationary and dynamical Schroedinger equations. In this note we show that the same result is valid in the presence of a smooth time-independent potential. The methods apply to continuous potentials as well and we conjecture that the L2 control is valid for any bounded time dependent potential.
Burq Nicolas
Zworski Maciej
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