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We classify the Deligne-Mumford stacks M compactifying the moduli space of smooth $n$-pointed curves of genus one under the condition that the points of M represent Gorenstein curves with distinct markings. This classification uncovers new…

Algebraic Geometry · Mathematics 2023-02-22 Sebastian Bozlee , Bob Kuo , Adrian Neff

A connection between moduli spaces of algebro-geometric objects and moduli spaces of polyhedral objects has been under investigation in recent years. Loosely speaking, the skeleton of an algebro-geometric moduli space is expressed as the…

Algebraic Geometry · Mathematics 2018-01-08 Lucia Caporaso

In this paper we study the relationship between three compactifications of the moduli space of Hermitian-Yang-Mills connections on a fixed Hermitian vector bundle over a projective algebraic manifold of arbitrary dimension. Via the…

Differential Geometry · Mathematics 2021-07-21 Daniel Greb , Benjamin Sibley , Matei Toma , Richard Wentworth

The moduli space of planar polygons with generic side lengths is a smooth, closed manifold. It is known that these manifolds contain the real points of the moduli space of distinct points on the projective line as an open dense subset.…

Algebraic Topology · Mathematics 2024-02-06 Navnath Daundkar , Priyavrat Deshpande

The space of smooth genus 0 curves in projective space has a natural smooth compactification: the moduli space of stable maps, which may be seen as the generalization of the classical space of complete conics. In arbitrary genus, no such…

Algebraic Geometry · Mathematics 2007-05-23 Ravi Vakil , Aleksey Zinger

We give a relation between Deninger's foliated dynamical systems associated to abelian number fields and Connes-Consani's adelic spaces. It fits with the analogy between knots and primes in arithmetic topology and lights up a geometric view…

Number Theory · Mathematics 2026-01-22 Masanori Morishita

We describe the moduli space G^r_d of triples consisting of a curve C, a line bundle L on C of degree d, and a linear system V on L of dimension r. This moduli space extends over a partial compactification {\tilde M_g} of M_g inside {\bar…

Algebraic Geometry · Mathematics 2007-05-23 Deepak Khosla

Consider the moduli space M^0 of arrangements of n hyperplanes in general position in projective (r-1)-space. When r=2 the space has a compactification given by the moduli space of stable curves of genus 0 with n marked points. In higher…

Algebraic Geometry · Mathematics 2010-03-16 Paul Hacking , Sean Keel , Jenia Tevelev

This is a note in which we first review symmetries of moduli spaces of stable meromorphic connections on trivial vector bundles over the Riemann sphere, and next discuss symmetries of their integrable deformations as an application. In the…

Classical Analysis and ODEs · Mathematics 2018-03-16 Kazuki Hiroe

We consider moduli spaces of dynamical systems of correspondences over the projective line as a generalization of moduli spaces of dynamical systems of endomorphisms on the projective line. We obtain the rationality of the moduli spaces.…

Dynamical Systems · Mathematics 2021-09-15 Rin Gotou

In this paper, we study moduli spaces of low dimensional complex Lie superalgebras. We discover a similar pattern for the structure of these moduli spaces as we observed for ordinary Lie algebras, namely, that there is a stratification of…

Representation Theory · Mathematics 2017-09-05 Fialowski Alice , Michael Penkava

The main goal of this work is to construct and study a reasonable compactification of the strata of the moduli space of Abelian differentials. This allows us to compute the Kodaira dimension of some strata of the moduli space of Abelian…

Algebraic Geometry · Mathematics 2018-05-24 Quentin Gendron

We define a compactification of symmetric spaces of noncompact type, seen as spaces of isometry classes of marked lattices, analogous to the Thurston compactification of the Teichm\"uller space, and we show that it is equivariantly…

Geometric Topology · Mathematics 2011-05-11 Thomas Haettel

Bounded local G-shtukas are function field analogs for p-divisible groups with extra structure. We describe their deformations and moduli spaces. The latter are analogous to Rapoport-Zink spaces for p-divisible groups. The underlying…

Algebraic Geometry · Mathematics 2014-01-28 U. Hartl , E. Viehmann

We define the smooth Lipschitz topology on the moduli space and show that each conformal class is dense in the moduli space endowed with Gromov-Hausdorff topology, which offers an answer to the Tuschmann's question.

General Topology · Mathematics 2021-04-08 Jialong Deng

We give an informal survey, emphasizing examples and open problems, of two interconnected research programs in moduli of curves: the systematic classification of modular compactifications of $M_{g,n}$, and the study of Mori chamber…

Algebraic Geometry · Mathematics 2011-06-10 Maksym Fedorchuk , David Ishii Smyth

Regularity properties of the pressure are related to phase transitions. In this article we study thermodynamic formalism for systems defined in non-compact phase spaces, our main focus being countable Markov shifts. We produce metric…

Dynamical Systems · Mathematics 2023-03-28 Godofredo Iommi , Mike Todd

We prove a semisimplicity result for the boundary, in the corresponding Deligne-Mumford compactification, of a totally geodesic subvariety of a moduli space of Riemann surfaces. At the level of Teichm\"uller space, this semisimplicity…

Geometric Topology · Mathematics 2025-04-24 Francisco Arana-Herrera , Alex Wright

The aim of this paper is to study some modular contractions of the moduli space of stable pointed curves. These new moduli spaces, which are modular compactifications of the moduli space of smooth pointed curves, are related with the…

Algebraic Geometry · Mathematics 2023-01-18 Giulio Codogni , Luca Tasin , Filippo Viviani

We define the moduli problem of Hitchin pairs over Deligne-Mumford Stack and prove this moduli problem is represented by a separated and locally finitely presented algebraic space, which is considered as the moduli space of Hitchin pairs…

Algebraic Geometry · Mathematics 2019-09-11 Hao Sun