Title : Irregular parabolic bundles on curves

Abstract : Motivated by the study of moduli spaces of connections
with irregular singular points on curves, we investigate moduli spaces 
of irregular parabolic bundles in the rank 2 case, on a rational curve.
This is a work in progress with Masa-Hiko Saito and Arata Komyo (Kobe University).
We show how degenerations of Del Pezzo surfaces arise in this way.