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Oberseminar SoSe 2009 Zusammenfassung des Vortrags von D. Ploog (Toronto, CAN)

Triangulated categories of singularities

Triangulated categories are valuable invariants of singularities, providing a link between geometry and representations of algebras. In this talk, we will present two approaches for some particular surface singularities: the algebraic one, using stable categories (or matrix factorisations) and a geometric one, utilising resolutions.

(Joint work with Chris Brav and Wolfgang Ebeling.)