In this article we provide a stack-theoretic framework to study the universal tropical Jacobian over the moduli space of tropical curves. We develop two approaches to the process of …
A Abreu, M Pacini - Proceedings of the London Mathematical …, 2020 - Wiley Online Library
For each universal genus‐g polarization μ of degree d, we construct a universal tropical Jacobian J μ, gtrop as a generalized cone complex over the moduli space of stable pointed …
To every singular reduced projective curve X one can associate, following Esteves, many fine compactified Jacobians, depending on the choice of a polarization on X, each of which …
S Casalaina-Martin, JL Kass… - Proceedings of the …, 2015 - academic.oup.com
This paper studies the local geometry of compactified Jacobians. The main result is a presentation of the completed local ring of the compactified Jacobian of a nodal curve as an …
We study the cohomology of Jacobians and Hilbert schemes of points on reduced and locally planar curves, which are however allowed to be singular and reducible. We show …
MAA de Cataldo, J Heinloth… - Journal für die reine und …, 2021 - degruyter.com
We compute the supports of the perverse cohomology sheaves of the Hitchin fibration for GL n over the locus of reduced spectral curves. In contrast to the case of meromorphic Higgs …
To every reduced (projective) curve X with planar singularities one can associate, following E Esteves, many fine compactified Jacobians, depending on the choice of a polarization on …
N Pagani, O Tommasi - Forum of Mathematics, Sigma, 2024 - cambridge.org
We introduce the abstract notion of a smoothable fine compactified Jacobian of a nodal curve, and of a family of nodal curves whose general element is smooth. Then we introduce …
JL Kass, N Pagani - Advances in Mathematics, 2017 - Elsevier
The Jacobian varieties of smooth curves fit together to form a family, the universal Jacobian, over the moduli space of smooth pointed curves, and the theta divisors of these curves form …