Speaker: |
Yusuke Nakamura (U Tokyo) |
Title: |
On semi-continuity problems for minimal log discrepancies |
Date (JST): |
Tue, Apr 02, 2013, 13:15 - 14:45 |
Place: |
Seminar Room A |
Abstract: |
The conjecture of termination of flips is still an open problem in the theory of minimal model program. There are two related conjectures about minimal log discrepancies, LSC (lower semi-continuity) conjecture and Musta\c{t}\u{a}'s conjecture. We show LSC conjecture for varieties which have a crepant resolution in the category of Deligne-Mumford stacks. Using this property, we also prove Musta\c{t}\u{a}'s for toric triples. |