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Related papers: Good moduli for moduli of objects

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In this paper we give construct good moduli spaces for constructible sheaves and Stokes functors. Derived enhancement of such are also considered.

Algebraic Geometry · Mathematics 2025-10-29 Enrico Lampetti

We extend the scope of a former paper to vector bundle problems involving more than one vector bundle. As the main application, we obtain the solution of the well-known moduli problems of vector bundles associated with general quivers.

Algebraic Geometry · Mathematics 2007-05-23 Alexander Schmitt

We show that there exists a fine moduli space for torsion-free sheaves on a projective surface, which have a "good framing" on a big and nef divisor. This moduli space is a quasi-projective scheme. This is accomplished by showing that such…

Algebraic Geometry · Mathematics 2011-07-19 Ugo Bruzzo , Dimitri Markushevich

Let $X$ be a projective variety over a field. In this paper, we will construct a moduli space of very ample line bundles on $X$. In doing so, we develop a generalization of Fitting ideals to complexes of sheaves on $X$. We give other…

Algebraic Geometry · Mathematics 2025-08-01 Brian Nugent

We construct (in significant generality) moduli spaces representing the functor of morphisms from a scheme into a solvable algebraic group.

Algebraic Geometry · Mathematics 2023-11-13 Zev Rosengarten

We develop the theory of associating moduli spaces with nice geometric properties to arbitrary Artin stacks generalizing Mumford's geometric invariant theory and tame stacks.

Algebraic Geometry · Mathematics 2009-10-19 Jarod Alper

Moduli of vector bundles on stacky curves behave similarly to moduli of vector bundles on curves, except there are additional numerical invariants giving many different notions of stability. We apply the existence criterion for good moduli…

Algebraic Geometry · Mathematics 2024-07-08 Chiara Damiolini , Victoria Hoskins , Svetlana Makarova , Lisanne Taams

We shall study moduli spaces of stable 1-dimensional sheaves on an elliptic ruled surface.

Algebraic Geometry · Mathematics 2022-02-21 Kota Yoshioka

We show how natural functors from the category of coherent sheaves on a projective scheme to categories of Kronecker modules can be used to construct moduli spaces of semistable sheaves. This construction simplifies or clarifies technical…

Algebraic Geometry · Mathematics 2009-11-11 Luis Álvarez-Cónsul , Alastair King

We construct a moduli space of stable pairs over a smooth projective variety, parametrizing morphisms from a fixed coherent sheaf to a varying sheaf of fixed topological type, subject to a stability condition. This generalizes the notion…

Algebraic Geometry · Mathematics 2018-03-16 Yinbang Lin

In this paper, we study certain moduli spaces of vector bundles on the blowup of the projective plane in at least 10 very general points. Moduli spaces of sheaves on general type surfaces may be nonreduced, reducible and even disconnected.…

Algebraic Geometry · Mathematics 2026-05-27 Izzet Coskun , Jack Huizenga

We determine the structure of certain moduli spaces of ideal sheaves by generalizing an earlier result of the first author. As applications, we compute the (virtual) Hodge polynomials of these moduli space, and calculate the…

Algebraic Geometry · Mathematics 2016-09-07 Sheldon Katz , Wei-Ping Li , Zhenbo Qin

We construct moduli spaces of objects in an abelian category satisfying some finiteness hypotheses. Our approach is based on the work of Artin-Zhang and the intrinsic construction of moduli spaces for stacks developed by…

Algebraic Geometry · Mathematics 2026-01-14 Andres Fernandez Herrero , Emmett Lennen , Svetlana Makarova

We give a complete classification of equivariant vector bundles of rank two over smooth complete toric surfaces and construct moduli spaces of such bundles. This note is a direct continuation of an earlier note where we developed a general…

Algebraic Geometry · Mathematics 2009-08-06 Markus Perling

The main result of the present paper is a construction of relative moduli spaces of stable sheaves over the stack of quasipolarized projective surfaces. For this, we use the theory of good moduli spaces, whose study was initiated by Alper.…

Algebraic Geometry · Mathematics 2025-01-08 Svetlana Makarova

We show that if A is an abelian category satisfying certain mild conditions, then one can introduce the concept of a moduli space of (semi)stable objects which has the structure of a projective algebraic variety. This idea is applied to…

Algebraic Geometry · Mathematics 2012-01-04 Vyacheslav Futorny , Marcos Jardim , Adriano Moura

Many moduli spaces are constructed as quotients of group actions; this paper surveys the classical theory, as well as recent progress and applications. We review geometric invariant theory for reductive groups and how it is used to…

Algebraic Geometry · Mathematics 2023-03-01 Victoria Hoskins

As an introduction to the concept of "moduli space" we consider the moduli space of similarity classes of acute and right triangles in the plane. This has a map to the moduli space of elliptic curves which is onto and generically…

Algebraic Geometry · Mathematics 2025-07-30 John Carlos Baez

We provide necessary and sufficient conditions for when an algebraic stack admits a good moduli space and prove a semistable reduction theorem for points of algebraic stacks equipped with a $\Theta$-stratification. These results provide a…

Algebraic Geometry · Mathematics 2024-02-26 Jarod Alper , Daniel Halpern-Leistner , Jochen Heinloth

We develop a new method for analyzing moduli problems related to the stack of pure coherent sheaves on a polarized family of projective schemes. It is an infinite-dimensional analogue of geometric invariant theory. We apply this to two…

Algebraic Geometry · Mathematics 2024-02-05 Daniel Halpern-Leistner , Andres Fernandez Herrero , Trevor Jones
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