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Journal Articles Annales de l'Institut Fourier Year : 2021

THE REAL PLANE CREMONA GROUP IS A NON-TRIVIAL AMALGAM

Abstract

We show that the real Cremona group of the plane is a non-trivial amalgam of two groups amalgamated along their intersection and givean alternative proof of its abelianisation.
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Dates and versions

hal-01719064 , version 1 (27-02-2018)
hal-01719064 , version 2 (27-03-2019)

Identifiers

  • HAL Id : hal-01719064 , version 2

Cite

Susanna Zimmermann. THE REAL PLANE CREMONA GROUP IS A NON-TRIVIAL AMALGAM. Annales de l'Institut Fourier, In press. ⟨hal-01719064v2⟩
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