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Results tagged with ag.algebraic-geometry
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user 513119
Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology.
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Exceptional locus of proper birational morphism from smooth variety to normal variety
Let $f:Y\rightarrow X$ be a proper birational morphism. Suppose that $X$ is normal and $Y$ is smooth.
Let us write the largest open subset U of X such that $f^{-1}$ can be defined.
I want to show that …
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