On semi-finite vector bundles with connection over Kahler manifolds
Abstract
Let be a compact connected K\"ahler manifold. We consider the category of flat holomorphic connections over satisfying the condition that the underlying holomorphic vector bundle admits a filtration of holomorphic subbundles preserved by the connection such that the monodromy of the induced connection on each successive quotient has finite image. The category , equipped with the neutral fiber functor that sends any object to the fiber , where is a fixed point, defines a neutral Tannakian category over . Let denote the affine group scheme corresponding to this neutral Tannakian category . Let be an extension of the Nori fundamental group scheme over . We show that is a closed subgroup scheme of . Finally, we discuss an example illustrating that if is not K\"ahler, then the natural homomorphism might fail to be an embedding.
Keywords
Cite
@article{arxiv.2508.17048,
title = {On semi-finite vector bundles with connection over Kahler manifolds},
author = {Sanjay Amrutiya and Indranil Biswas},
journal= {arXiv preprint arXiv:2508.17048},
year = {2025}
}
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