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From the 1 of 9 linked papers with an AI index.

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9 papers

math.AG2026

Topology of Galois conjugate character varieties

Junliang Shen, Siqing Zhang

The paper investigates how integral structures, automorphisms, and tautological relations in the cohomology of character varieties can be used to distinguish the homotopy types of…

math.AG2026

Dualizable abelian fibrations

Davesh Maulik, Junliang Shen, Qizheng Yin

In his proof of the fundamental lemma of the Langlands program, Ngô initiated the study of the decomposition theorem for abelian fibrations. When an abelian fibration admits a dua…

math.AG2026

On the Orlov conjecture for hyper-Kähler varieties via hyperholomorphic bundles

Davesh Maulik, Junliang Shen, Qizheng Yin

We study Fourier transforms induced by Markman's projectively hyperholomorphic bundles on products of hyper-Kähler varieties of -type. As applications, we prove the foll…

math.AG2026

On generalized Beauville decompositions

Younghan Bae, Davesh Maulik, Junliang Shen +1

Motivated by the Beauville decomposition of an abelian scheme and the "Perverse = Chern" phenomenon for a compactified Jacobian fibration, we study in this paper splittings of the…

math.AG2025

Cohomology of compactified Jacobians for locally planar integral curves

Junliang Shen

This article surveys some recent developments on the cohomology of the compactified Jacobian associated with a locally planar integral curve. Topics discussed here include the Ngô…

math.AG2025

Algebraic cycles and Hitchin systems

Davesh Maulik, Junliang Shen, Qizheng Yin

The purpose of this paper is to study motivic aspects of the Hitchin system for . Our results include the following. (a) We prove the motivic decomposition conjectur…