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### 08.03.2011 (Tuesday)

#### Stability and wall-crossing

Regular Seminar Tom Bridgeland (Oxford)

 at: 16:00 City U.room AG03 abstract: In algebraic geometry and string theory there has been a lot of recent work on so-called wall-crossing phenomena for Donaldson-Thomas invariants. In this talk we will study a baby example of wall-crossing, which already has some non-trivial consequences. I will not assume any previous knowledge of algebraic geometry, just some basic properties of the category of modules over a ring.