Variational resummation for ϵ-expansions
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Hagen Kleinert
📂
Article
📅
2000
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Elsevier Science
🌐
English
⚖ 163 KB
We develop a method for extracting accurate critical exponents from perturbation expansions of the O n -symmetric nonlinear s-model in D s 2 q e dimensions. This is possible by considering the e-expansions in this model as strong-cou-Ž . Ž . pling expansions of functions of the variable ´' 2 4y D r