Abstract
We develop a new, unified, method to construct a closed (selfad-joint in ℒ2) extension of a partial differential operator in all the spaces ℒp(ℝn) 1≦p≦∞. Our method is not only an unified approach but it is also very efficient. We obtain very weak conditions on the potentials.
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Communicated by H. Araki
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Weder, R. The unified approach to spectral analysis. Commun.Math. Phys. 60, 291–299 (1978). https://doi.org/10.1007/BF01612894
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DOI: https://doi.org/10.1007/BF01612894