Moduli Space of Parabolic Bundles on P 1 and Frobenius Splitting

Let [Formula: see text] be a finite set of [Formula: see text] over an algebraically closed field [Formula: see text] of [Formula: see text], and [Formula: see text] be the moduli space of semistable parabolic bundles of rank two and degree [Formula: see text] on [Formula: see text] with parabolic structures determined by weights [Formula: see text]. We prove that [Formula: see text] is F-split when [Formula: see text], which partly answers a conjecture of Mehta and Ramadas for the genus zero case.

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Publication Details

Journal
Algebra Colloquium
Published
2026-02-27
DOI
https://doi.org/10.1142/s1005386726000052
Primary Topic
Algebraic Geometry and Number Theory
Type
article
Field-Weighted Citation Impact
0.00
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article

Moduli Space of Parabolic Bundles on P 1 and Frobenius Splitting

Yanglong Zhang
Algebra Colloquium
Algebraic Geometry and Number Theory
article

Moduli Space of Parabolic Bundles on P 1 and Frobenius Splitting

Yanglong Zhang
article en

Abstract

Let [Formula: see text] be a finite set of [Formula: see text] over an algebraically closed field [Formula: see text] of [Formula: see text], and [Formula: see text] be the moduli space of semistable parabolic bundles of rank two and degree [Formula: see text] on [Formula: see text] with parabolic structures determined by weights [Formula: see text]. We prove that [Formula: see text] is F-split when [Formula: see text], which partly answers a conjecture of Mehta and Ramadas for the genus zero case.

Algebra ColloquiumVol. 33(01)
Tianjin University (CN), Academy of Mathematics and Systems Science (CN)
Openalex Percentile: Top 37%
Algebraic Geometry and Number Theory
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