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Infinite families of inequivalent real circle actions on affine four-space
Sur des familles infinies d'actions non équivalentes du cercle réel sur l'espace affine de dimension 4
2019
Épijournal de Géométrie Algébrique
Sur des familles infinies d'actions non équivalentes du cercle réel sur l'espace affine de dimension 4
International audience The main result of this article is to construct infinite families of non-equivalent equivariant real forms of linear C*-actions on affine four-space. We consider the real form of $\mathbb{C}^*$ whose fixed point is a circle. In [F-MJ] one example of a non-linearizable circle action was constructed. Here, this result is generalized by developing a new approach which allows us to compare different real forms. The constructions of these forms are based on the structure of
doi:10.46298/epiga.2019.volume3.4685
fatcat:vx44mznre5dizausfnyphsz6d4