Stability conditions, rational elliptic surfaces and Painleve equations

Thu, 20/10/2011
12:00
Tom Sutherland Junior Geometry and Topology Seminar Add to calendar SR2
We will describe the space of Bridgeland stability conditions of the derived category of some CY3 algebras of quivers drawn on the Riemann sphere. We give a biholomorphic map from the upper-half plane to the space of stability conditions lifting the period map of a meromorphic differential on a 1-dimensional family of elliptic curves. The map is equivariant with respect to the actions of a subgroup of $ \mathrm{PSL}(2,\mathbb Z) $ on the left by monodromy of the rational elliptic surface and on the right by autoequivalences of the derived category. The complement of a divisor in the rational elliptic surface can be identified with Hitchin's moduli space of connections on the projective line with prescribed poles of a certain order at marked points. This is the space of initial conditions of one of the Painleve equations whose solutions describe isomonodromic deformations of these connections.