$G_2$-instantons on noncompact $G_2$-manifolds: results and open problems

Abstract

We survey the known existence and non-existence results for $G_2$-instantons on non-compact cohomogeneity-1 $G_2$-manifolds and their consequences, including an explicit example of a family of $G_2$-instantons where bubbling, removable singularities and conservation of energy phenomena occur. We also describe several open problems for future research.

To appear in a forthcoming volume of the Fields Institute Communications, entitled "Lectures and Surveys on G2 manifolds and related topics"

References in corpus (1)

• Instantons on the exceptional holonomy manifolds of Bryant and Salamon