“…It was originally proved by Narasimhan-Seshadri ( [34]), Donaldson ([15,16]) and Uhlenbeck-Yau ( [42]) for holomorphic bundles. There are also many interesting and important generalized Donaldson-Uhlenbeck-Yau theorems (see [4,5,6,9,25,31,32,33,37,44,45] and references therein).…”