Quot-scheme limit of Fubini-Study metrics and its applications to balanced metrics

We present some results that complement our prequels [28, 29] on holomorphic vector bundles. We apply the method of the Quotscheme limit of Fubini–Study metrics developed therein to provide a generalisation to the singular case of the result originally obtained by X.W. Wang for the smooth case, which states that the existence of balanced metrics is equivalent to the Gieseker stability of the vector bundle. We also prove that the Bergman 1-parameter subgroups form subgeodesics in the space of hermitian metrics. This paper also contains a review of techniques developed in [28,29] and how they correspond to their counterparts developed in the study of the Yau–Tian–Donaldson conjecture.

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