133 citations · 795 across the 60 of their papers we have counts for
4 papers · 1 filter
Simple Type and the Boundary of Moduli Space
David Groisser, Lorenzo Sadun
We measure, in two distinct ways, the extent to which the boundary region of moduli space contributes to the ``simple type'' condition of Donaldson theory. Using a geometric repres…
Simple Type is Not a Boundary Phenomenon
Lorenzo Sadun
This is an expository article, explaining recent work by D. Groisser and myself [GS] on the extent to which the boundary region of moduli space contributes to the ``simple type'' c…
Parallel Connections Over Symmetric Spaces
Luis Guijarro, Lorenzo Sadun, Gerard Walschap
Let M be a simply connected Riemannian symmetric space, with at most one flat direction. We show that every Riemannian (or unitary) vector bundle with parallel curvature over M is…
A Simple Geometric Representative for of a Point
Lorenzo Sadun
For (or ) Donaldson theory on a 4-manifold , we construct a simple geometric representative for of a point. Let be a generic point in . Then the set $\…