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A note on singular Hermitian Yang-Mills connections. (English) Zbl 1525.83008

Summary: We give an example of a homogeneous reflexive sheaf over \(\mathbb{C}^3\) which admits a non-conical Hermitian Yang-Mills connection. This is expected to model bubbling phenomenon along complex codimension \(2\) submanifolds when the Fueter section takes zero value.

MSC:

83C40 Gravitational energy and conservation laws; groups of motions
53C07 Special connections and metrics on vector bundles (Hermite-Einstein, Yang-Mills)
55N30 Sheaf cohomology in algebraic topology
53B25 Local submanifolds