Rational Singularity
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Geliefert zwischen Do., 25.09.2025 und Fr., 26.09.2025
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High Quality Content by WIKIPEDIA articles! In mathematics, more particularly in the field of algebraic geometry, a scheme X has rational singularities, if it is normal, of finite type over a field of characteristic zero, and there exists a proper birational map f colon Y rightarrow X from a regular scheme Y such that the higher direct images of f applied to mathcal{O}Y are trivial. That is, R^i f mathcal{O}_Y = 0 for i 0.If there is one such resolution, then it follows that all resolutions share this property, since any two resolutions of singularities can be dominated by a third.For surfaces, rational singularities were defined by (Artin 1966).
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786131369742
- Editor Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
- Größe H220mm x B220mm
- EAN 9786131369742
- Titel Rational Singularity
- Herausgeber Betascript Publishing
- Anzahl Seiten 64
- Genre Mathematik
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