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On actions of \(\mathbb{C}^*\) on algebraic spaces. (English) Zbl 0779.14014
The main result of the paper says that all schematic points of the source of an action of \(\mathbb{C}^*\) on an algebraic space \(X\) are schematic on \(X\).

14L30 Group actions on varieties or schemes (quotients)
32M05 Complex Lie groups, group actions on complex spaces
14M25 Toric varieties, Newton polyhedra, Okounkov bodies
Full Text: DOI Numdam
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