Abstract
It is discussed under which conditions the singularity of type exp(-1/g)-predicted from causality for logarithmic models-will appear in the leading order of the effective coupling constant.
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References
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ColemanS., Lectures at the 1971 International Summer School of Physics, Ettore Majorana, Vol. 9A, Editrici Compositori, Bologna, 1973, p. 358.
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Geicke, J. Causality and fixed points in the renormalization group. Lett Math Phys 3, 181–183 (1979). https://doi.org/10.1007/BF00405290
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DOI: https://doi.org/10.1007/BF00405290