Renormalization, isogenies and rational symmetries of differential equations
classification
🧮 math-ph
cond-mat.stat-mechhep-thmath.MPphysics.comp-ph
keywords
differentialexamplerationalrenormalizationcovariantequationequationsexact
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We give an example of infinite order rational transformation that leaves a linear differential equation covariant. This example can be seen as a non-trivial but still simple illustration of an exact representation of the renormalization group.
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