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On the Cremona group and it's subgroups
The thesis consists of three parts: 1. Group theory. Here we emphasize the role of the mutation, which is some element of the Thompson group T. In particular using... -
Étude explicite de quelques n-champs géométriques
In [PRID], Pridham has shown that any Artin n-stack M has a presentation as a simplicial scheme X. → M such that the simplicial scheme X satisfies certain properties...
