Geometry of minimal energy Yang-Mills connections
Abstract
Description
We study the converse to the statement that instantons are minimizers of the Yang--Mills energy in four dimensions. We show that given an energy minimizing connection, A, the curvature of A takes values in a subbundle of the adjoint bundle which decomposes as a sum of instantons.
16 pages; removed sections on duality for tori in dimensions greater than 4 and on G_2; references added
16 pages; removed sections on duality for tori in dimensions greater than 4 and on G_2; references added