Download Algebraic Geometry II: Cohomology of Algebraic Varieties. by V. I. Danilov (auth.), I. R. Shafarevich (eds.) PDF

Y is a finite morphism. 6, and we may set and view the right-hand side as a sheaf of modules on X. Wegeta canonical isomorphism I. 6. Duality on Cohen-Macaulay Schemes. Let X be a projective Cohen-Macaulay scheme of pure dimension n (see Sect. 3). There exists a finite morphism f: X -; IP'n, and every such morphism is flat (Danilov (1988)).

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