Mathematics – Algebraic Geometry
Scientific paper
2012-03-08
Mathematics
Algebraic Geometry
5 pages, 1 figure
Scientific paper
In this note, we generalize the Proj-construction from usual schemes to blue
schemes. This yields the definition of projective space and projective
varieties over a blueprint. In particular, it is possible to descend closed
subvarieties of a projective space to a canonical F_1-model. We discuss this
explicitly in case of the Grassmannian Gr(2,4).
Lorscheid Oliver
Peña Javier López
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