Degenerations of <2>-polarised K3 surfaces

Thu, 22/10/2009
12:00
Alan Thompson (Oxford) Junior Geometry and Topology Seminar Add to calendar SR1
A <2>-polarised K3 surface admits an embedding into weighted projective space defined by its polarisation. Let X be a family of such surfaces, then one can construct a projective model W of X such that the map from X to W realises this embedding on the general fibre. This talk considers what happens to W when we allow the fibres of the family X to degenerate.