topological string seminar

Speaker: David Morrison (UC Santa Barbara/IPMU)
Title: Quivers from Matrix Factorizations
Date (JST): Mon, Sep 27, 2010, 13:30 - 17:00
Place: Seminar Room A
Abstract: We discuss how matrix factorizations offer a practical method of computing the quiver and associated superpotential for a hypersurface singularity. This method also yields explicit geometrical interpretations of D-branes (i.e., quiver representations) on a resolution given in terms of Grassmannians. As an example we analyze some non-toric singularities which are resolved by a single CP1 but have "length" greater than one. These examples have a much richer structure than conifolds. A picture is proposed that relates matrix factorizations in Landau-Ginzburg theories to the way that matrix factorizations are used in this paper to perform noncommutative resolutions. (Based on joint work with Paul Aspinwall.)
Remarks: Introductory talk before the tea break 15:00-15:30.