Logarithmic double ramification cycles

D Holmes, S Molcho, R Pandharipande… - arXiv preprint arXiv …, 2022 - arxiv.org
Let $ A=(a_1,\ldots, a_n) $ be a vector of integers which sum to $ k (2g-2+ n) $. The double
ramification cycle $\mathsf {DR} _ {g, A}\in\mathsf {CH}^ g (\mathcal {M} _ {g, n}) $ on the …

The stability space of compactified universal Jacobians

J Kass, N Pagani - Transactions of the American Mathematical Society, 2019 - ams.org
In this paper we describe compactified universal Jacobians, ie, compactifications of the
moduli space of line bundles on smooth curves obtained as moduli spaces of rank $1 …

The universal tropical Jacobian and the skeleton of the Esteves' universal Jacobian

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 …

The resolution of the universal Abel map via tropical geometry and applications

A Abreu, M Pacini - Advances in Mathematics, 2021 - Elsevier
Let g and n be nonnegative integers and A=(a 0,…, an) a sequence of n+ 1 integers
summing up to d. Let M‾ g, n+ 1 be the moduli space of (n+ 1)-pointed stable curves of …

Universal compactified Jacobians

M Melo - Portugaliae Mathematica, 2020 - ems.press
In this paper we describe compactifications of the universal Jacobian stack of line bundles
over smooth curves obtained by considering open substacks of the moduli stack of torsion …

Compactified universal Jacobian and the double ramification cycle

B Dudin - International Mathematics Research Notices, 2018 - academic.oup.com
Using the compactified universal jacobian over the moduli space of stable marked curves,
we give an expression in terms of natural classes of the zero section of in the (rational) …

A universal tropical Jacobian over M g trop M_g^trop

A Abreu, S Andria, M Pacini… - Journal of the London …, 2023 - Wiley Online Library
We introduce and study polystable divisors on a tropical curve, which are the tropical
analogue of polystable torsion‐free rank‐1 sheaves on a nodal curve. We construct a …

Correlated Gromov-Witten invariants

T Blomme, F Carocci - arXiv preprint arXiv:2409.09472, 2024 - arxiv.org
We introduce a geometric refinement of Gromov-Witten invariants for $\mathbb P^ 1$-
bundles relative to the natural fiberwise boundary structure. We call these refined invariant …

Powers of the theta divisor and relations in the tautological ring

E Clader, S Grushevsky, F Janda… - International …, 2018 - academic.oup.com
We show that the vanishing of the-st power of the theta divisor in the cohomology and Chow
rings of the universal abelian variety implies, by pulling back along a collection of Abel …

Universal Néron models for Jacobians of curves with marked points

M Melo - Bollettino dell'Unione Matematica Italiana, 2017 - Springer
In the present paper we consider the following question: does there exist a Néron model for
families of Jacobians of curves with sections? By applying a construction of the author of …