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Renormalization, isogenies and rational symmetries of differential equations

Abstract : 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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https://hal.inria.fr/hal-00780425
Contributor : Alin Bostan <>
Submitted on : Wednesday, January 23, 2013 - 10:09:26 PM
Last modification on : Wednesday, December 9, 2020 - 3:10:48 PM

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  • HAL Id : hal-00780425, version 1
  • ARXIV : 0911.5466

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A. Bostan, S. Boukraa, S. Hassani, J. -M. Maillard, Jacques-Arthur Weil, et al.. Renormalization, isogenies and rational symmetries of differential equations. 2010. ⟨hal-00780425⟩

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