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We shall prove that a moduli space of flat irreducible Lie algebroid connections over a compact manifold has locally a natural structure of a smooth differentiable space. This is a generalization of some well known results for the moduli…

微分几何 · 数学 2010-12-16 Libor Křižka

Projective structures on topological surfaces support the structure of 2d CFTs with a degree of technical simplification. We propose a complex analytic space $\mathcal{P}_g$ biholomorphic to $T^*_{(1,0)} \mathcal{M}_g$ as a candidate moduli…

高能物理 - 理论 · 物理学 2024-11-05 Xiao Liu

There is a canonical identification, due to the author, of a convex real projective structure on an orientable surface of genus g and a pair consisting of a conformal structure together with a holomorphic cubic differential on the surface.…

微分几何 · 数学 2007-05-23 John C. Loftin

We formalize the concepts of holomorphic affine and projective structures along the leaves of holomorphic foliations by curves on complex manifolds. We show that many foliations admit such structures, we provide local normal forms for them…

微分几何 · 数学 2024-07-08 Bertrand Deroin , Adolfo Guillot

The existence of some complex geometrical structures on a compact manifold such as complex structures, Kaehler (pseudo-Kaehler) structures often impose certain restrictions on its underling topological or differentiable manifold. In this…

复变函数 · 数学 2016-01-15 Keizo Hasegawa

We compute and analyse the moduli space of those real projective structures on a hyperbolic 3-orbifold that are modelled on a single ideal tetrahedron in projective space. Parameterisations are given in terms of classical invariants,…

几何拓扑 · 数学 2021-01-06 Joan Porti , Stephan Tillmann

In this survey, we discuss whether the complex projective space can be characterized by its integral cohomology ring among compact complex manifolds.

代数几何 · 数学 2015-12-15 Olivier Debarre

We classify projective manifolds with flat holomorphic conformal structures.

代数几何 · 数学 2015-03-02 Priska Jahnke , Ivo Radloff

Generalizing the well-known Shafarevich hyperbolicity conjecture, it has been conjectured by Viehweg that a quasi-projective manifold that admits a generically finite morphism to the moduli stack of canonically polarized varieties is…

代数几何 · 数学 2007-07-16 Stefan Kebekus , Sandor J. Kovacs

We use hypersurfaces containing unexpected linear spaces to construct interesting vector bundles on complete intersection surfaces in projective space. We discover examples of moduli spaces of rank 2 stable bundles on surfaces of Picard…

代数几何 · 数学 2021-05-12 Izzet Coskun , Jack Huizenga , John Kopper

The complex projective structures considered is this article are compact curves locally modeled on $\mathbb{CP}^1$. To such a geometric object, modulo marked isomorphism, the monodromy map associates an algebraic one: a representation of…

微分几何 · 数学 2025-08-28 Titouan Sérandour

The authors give a complete classification of projective threefolds admitting a holomorphic normal projective connection. Moreover, they prove a general structure theorem on complex projective manifolds admitting a holomorphic normal…

代数几何 · 数学 2007-05-23 Priska Jahnke , Ivo Radloff

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…

代数几何 · 数学 2011-07-19 Ugo Bruzzo , Dimitri Markushevich

Generalizing the well-known Shafarevich hyperbolicity conjecture, it has been conjectured by Viehweg that a quasi-projective manifold that admits a generically finite morphism to the moduli stack of canonically polarized varieties is…

代数几何 · 数学 2019-12-19 Stefan Kebekus , Sandor J. Kovacs

We study the geometry of the moduli space of planes in a general cubic 5-fold and its deformation. We show that this moduli space is a smooth projective surface whose canonical bundle is ample. We also show that the variation of degree 1…

代数几何 · 数学 2025-06-18 Chenpeng Feng

In this note we identify two complex structures (one is given by algebraic geometry, the other by gauge theory) on the set of isomorphism classes of holomorphic bundles with section on a given compact complex manifold. In the case of line…

代数几何 · 数学 2007-05-23 Siegmund Kosarew , Paul Lupascu

We construct and prove the projectiveness of the moduli spaces which are natural generalizations to the case of surfaces of the following: 1) $M_{g,n}$, the moduli space of $n$-marked stable curves, 2) $M_{g,n}(W)$, the moduli space of…

alg-geom · 数学 2015-06-30 Valery Alexeev

In this paper we study the set of projective maps between compact proper convex real projective manifolds. We show that this set contains only finitely many distinct homotopy classes and each homotopy class has the structure of a real…

微分几何 · 数学 2015-07-01 Andrew Zimmer

By means of analytic methods the quasi-projectivity of the moduli space of algebraically polarized varieties with a not necessarily reduced complex structure is proven including the case of non-uniruled polarized varieties.

代数几何 · 数学 2007-05-23 Georg Schumacher , Hajime Tsuji

We prove that every proper subspace of the moduli space of stable surfaces with fixed volume over an algebraically closed field of characteristic p>5 is projective. As a consequence we also deduce that the same moduli space is projective…

代数几何 · 数学 2017-10-16 Zsolt Patakfalvi
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