Moduli space of homologically trivial parabolic (Higgs) bundles on the projective line and applications

Fuente: arXiv
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Main Author: Wen, Xueqing
Format: Preprint
Published: 2021
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author Wen, Xueqing
author_facet Wen, Xueqing
contents We establish an isomorphism between the moduli space of homologically trivial parabolic (Higgs) bundles on $\mathbb{P}^1$ and the quiver variety associated to a star-shaped quiver. As applications, we deduce a closed formula for the Littlewood-Richardson coefficients from the Verlinde formula, and solve the nilpotent case of the Deligne-Simpson problem via geometric methods.
format Preprint
id arxiv_https___arxiv_org_abs_2101_01913
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle Moduli space of homologically trivial parabolic (Higgs) bundles on the projective line and applications
Wen, Xueqing
Algebraic Geometry
We establish an isomorphism between the moduli space of homologically trivial parabolic (Higgs) bundles on $\mathbb{P}^1$ and the quiver variety associated to a star-shaped quiver. As applications, we deduce a closed formula for the Littlewood-Richardson coefficients from the Verlinde formula, and solve the nilpotent case of the Deligne-Simpson problem via geometric methods.
title Moduli space of homologically trivial parabolic (Higgs) bundles on the projective line and applications
topic Algebraic Geometry
url https://arxiv.org/abs/2101.01913