Abstract
We prove the absence of classical lumps for a large class of constrained systems. In particular we prove that there is no classical lump in the 0(N) non linear σ-model in 2 dimensional space time.
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Communicated by A. Jaffe
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Weder, R. Absence of classical lumps in constrained systems. Commun.Math. Phys. 63, 1–8 (1978). https://doi.org/10.1007/BF02156125
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DOI: https://doi.org/10.1007/BF02156125