Normal real affine varieties with circle actions
نویسندگان
چکیده
We provide a complete description of normal affine algebraic varieties over the real numbers endowed with an effective action circle, that is, form complex multiplicative group whose locus consists unitary circle in plane. Our approach builds on geometrico-combinatorial actions split tori terms proper polyhedral divisors semiprojective due to Altmann and Hausen.
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ژورنال
عنوان ژورنال: Annales de l'Institut Fourier
سال: 2022
ISSN: ['0373-0956', '1777-5310']
DOI: https://doi.org/10.5802/aif.3504