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20172026
most citedThe Picard group of the moduli of smooth complete intersections of two quadrics

6 citations · 13 across the 18 of their papers we have counts for

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math.AG2026

Projective moduli of log Calabi--Yau fibrations over curves

Giovanni Inchiostro, Junyan Zhao

We introduce a new stability condition for log Calabi--Yau fibrations over curves. We prove that it gives rise to a proper Deligne--Mumford stack with a projective coarse moduli sp…

math.AG2025

Moduli of surfaces fibered in (log) Calabi-Yau pairs II: elliptic surfaces

Giovanni Inchiostro, Junyan Zhao

This paper continues the study initiated in [ISZ25] on the moduli of surfaces admitting lc-trivial fibrations. Using the techniques developed in [ISZ25], we (1) provide a classific…

math.AG2025

Moduli of surfaces fibered in log Calabi-Yau pairs

Giovanni Inchiostro, Roberto Svaldi, Junyan Zhao

We study the moduli spaces of surface pairs admitting a log Calabi--Yau fibration . We develop a series of results on stable reduction and apply them to give a…

math.AG2025

Root stack valuative criterion for good moduli spaces

Dori Bejleri, Giovanni Inchiostro, Matthew Satriano

We prove a root stack valuative criterion for good moduli space maps and for gerbes for reductive groups under some mild assumptions on the residue characteristic. We give several…

math.AG2024

Stable maps to quotient stacks with a properly stable point

Andrea Di Lorenzo, Giovanni Inchiostro

We compactify moduli stacks of maps from curves to a large class of quotient stacks admitting projective good moduli spaces. Our construction extends quasimap-theoretic com…

math.AG2024

Moduli of elliptic surfaces of Kodaira dimension one fibered over rational curves

Dori Bejleri, Josiah Foster, Andres Fernandez Herrero +3

In this article, we construct an infinite sequence of irreducible components of Kollár--Shepherd-Barron (KSB-) moduli spaces of surfaces of arbitrarily large volumes, and describe…

math.AG2023

A criterion for smooth weighted blow-downs

Veronica Arena, Andrea Di Lorenzo, Giovanni Inchiostro +3

We establish a criterion for determining when a smooth Deligne-Mumford stack is a weighted blow-up. More precisely, given a smooth Deligne-Mumford stack and a Cartier…

math.AG2023★ 3 cited

Moduli of boundary polarized Calabi-Yau pairs

Kenneth Ascher, Dori Bejleri, Harold Blum +4

We develop the moduli theory of boundary polarized CY pairs, which are slc Calabi-Yau pairs such that is ample. The motivation for studying this moduli problem is to co…

math.AG2023

Effective morphisms and quotient stacks

Andrea Di Lorenzo, Giovanni Inchiostro

We give a valuative criterion for when a smooth algebraic stack with a separated good moduli space is the quotient of a separated Deligne-Mumford stack by a torus. For doing so, we…

math.AG2022

Degenerations of twisted maps to algebraic stacks

Andrea Di Lorenzo, Giovanni Inchiostro

We give a definition of twisted map to a quotient stack with projective good moduli space, and we show that the resulting functor satisfies the existence part of the valuative crit…

math.AG2022

The integral Chow rings of moduli of Weierstrass fibrations

Samir Canning, Andrea Di Lorenzo, Giovanni Inchiostro

We compute the Chow rings with integral coefficients of moduli stacks of minimal Weierstrass fibrations over the projective line. For each integer , there is a moduli stac…

math.AG2021

Moduli of genus one curves with two marked points as a weighted blow-up

Giovanni Inchiostro

We give an explicit description of as a weighted blow-up of a weighted projective stack. We use this description to compute the Brauer group of $\ove…

math.AG2021★ 2 cited

Moduli of -Gorenstein pairs and applications

Stefano Filipazzi, Giovanni Inchiostro

We develop a framework to construct moduli spaces of -Gorenstein pairs. To do so, we fix certain invariants; these choices are encoded in the notion of -sta…

math.AG2021

Wall crossing for moduli of stable log pairs

Kenneth Ascher, Dori Bejleri, Giovanni Inchiostro +1

We prove, under suitable conditions, that there exist wall-crossing and reduction morphisms for moduli spaces of stable log pairs in all dimensions as one varies the coefficients o…

math.AG2019

Stable pairs with a twist and gluing morphisms for moduli of surfaces

Dori Bejleri, Giovanni Inchiostro

We propose an alternative definition for families of stable pairs over a possibly non-reduced base when is reduced, by replacing with an appropriate orbifold pa…

math.AG2018

Moduli of Weierstrass fibrations with marked section

Giovanni Inchiostro

We study the the moduli space of KSBA stable pairs , consisting of a Weierstrass fibration , its section , and some fibers . We find a compactificat…

math.AG2017★ 6 cited

The Picard group of the moduli of smooth complete intersections of two quadrics

Shamil Asgarli, Giovanni Inchiostro

We study the moduli space of smooth complete intersections of two quadrics in by relating it to the geometry of the singular members of the corresponding pencils. Gi…