Flops, flips and perverse point sheaves on threefold stacks |
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Authors: | Dan Abramovich Jiun-Cheng Chen |
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Affiliation: | aDepartment of Mathematics, Box 1917, Brown University, Providence, RI 02912, USA;bDepartment of Mathematics, Northwestern University, 2033 Sheridan Road, Evanston, IL 60208, USA |
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