Giovanni Inchiostro, UW
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PDL C-401
Given a closed subscheme \$Y\$ of a scheme \$X\$, one can construct \$B\$ the blow-up of \$X\$ along \$Y\$. In this talk I will explain some special cases of the opposite situation: given a smooth variety \$B\$, when can one construct another smooth variety \$X\$ such that \$B\$ is the blow-up of \$X\$ at a smooth subvariety \$Y\$?