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Projective Schemes and Bundles

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A Royal Road to Algebraic Geometry
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Abstract

The chapter starts by defining Proj(S) for a graded ring k[X 0,…,X N ], the scheme-theoretic version of projective N-space. We then immediately move on to Proj (S) for a graded A-algebra S. It is first defined as a Spec(A)-scheme when A is a commutative ring, then we proceed to extended the definition to the important global case of a graded -algebra on a scheme X. Likewise the module corresponding to a graded S-module is defined, as well as the global counterpart for a graded -module on a scheme X.

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Notes

  1. 1.

    See, e.g. [18], p. 119.

  2. 2.

    Some references, such as [12], use this designation for the scheme .

References

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Correspondence to Audun Holme .

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© 2012 Springer-Verlag Berlin Heidelberg

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Holme, A. (2012). Projective Schemes and Bundles. In: A Royal Road to Algebraic Geometry. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19225-8_14

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