MATH Seminar
| Title: Wall crossing in moduli problems and semi-orthogonal decompositions |
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| Seminar: Algebra |
| Speaker: Matt Ballard of USC |
| Contact: David Zureick-Brown, dzb@mathcs.emory.edu |
| Date: 2014-09-30 at 4:00PM |
| Venue: W306 |
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| Abstract: We discuss how the derived category of a smooth algebraic stack of finite type changes as one removes certain types of closed substacks. As an application, we show how wall-crossing in moduli of stable sheaves and Bridgeland stable objects yields semi-orthogonal decompositions of relating their derived categories. |
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