Abstract
Renormalization group recursion formulas for classical O(N) spin models in two dimensions are obtained. The main part of the recursion formulas is solved and yields the flows which are very close to those of the hierarchical model approximations of Dyson–Wilson type. Spontaneous mass generations also take place under our approximation.
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Ito, K.R. Renormalization Group Recursion Formulas and Flows of 2D O(N) Spin Models. Journal of Statistical Physics 107, 821–856 (2002). https://doi.org/10.1023/A:1014542315025
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DOI: https://doi.org/10.1023/A:1014542315025