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In this paper, we establish a Schmidt's subspace theorem for moving hypersurfaces in weakly subgeneral position. Our result generalizes the previous results on Schmidt's theorem for the case of moving hypersurfaces.

Number Theory · Mathematics 2018-08-30 Si Duc Quang

We define the notion of generalized logarithmic sheaves on a smooth projective surface, associated to a pair consisting of a reduced curve and some fixed points on it. We then set up the study of the Torelli property in this setting,…

Algebraic Geometry · Mathematics 2023-02-16 Sukmoon Huh , Simone Marchesi , Joan Pons-Llopis , Jean Vallès

The purpose of this article is to give an interpretation of real projective structures and associated cohomology classes in terms of connections, sections, etc. satisfying elliptic partial differential equations in the spirit of Hodge…

Differential Geometry · Mathematics 2007-05-23 F. Labourie

We use a Koszul-type resolution to prove a weak version of Bott's vanishing theorem for smooth hypersurfaces in $\mathbb{P}^n$ and use this result to prove a vanishing theorem for Hodge ideals associated with an effective Cartier divisor on…

Algebraic Geometry · Mathematics 2024-10-21 Anh Duc Vo

The main purpose of this paper is to make Nakayama's theorem more accessible. We give a proof of Nakayama's theorem based on the negative definiteness of intersection matrices of exceptional curves. In this paper, we treat Nakayama's…

Algebraic Geometry · Mathematics 2021-07-20 Osamu Fujino

For any positive integer $r$, we construct a smooth complex projective rational surface which has at least $r$ real forms not isomorphic over $\mathbb{R}$.

Algebraic Geometry · Mathematics 2022-02-11 Anna Bot

We prove a Morse index theorem for action functionals on paths that are allowed to reflect at a hypersurface (either in the interior or at the boundary of a manifold). Both fixed and periodic boundary conditions are treated.

Differential Geometry · Mathematics 2024-06-26 Jared Wunsch , Mengxuan Yang , Yuzhou Zou

On a smooth asymptotically flat Riemannian manifold with non-compact boundary, we prove a positive mass theorem for metrics which are only continuous across a compact hypersurface. As an application, we obtain a positive mass theorem on…

Differential Geometry · Mathematics 2025-06-26 Sergio Almaraz , Shaodong Wang

This is an expository paper giving a proof of the existence and uniqueness of smooth structures (hence also PL structures) on topological surfaces. Most published proofs rely on the topological Schoenflies theorem, but here we use instead…

Geometric Topology · Mathematics 2025-02-14 Allen Hatcher

We consider the Zariski-Lipman Conjecture on free module of derivations for algebraic surfaces. Using the theory of non-complete algebraic surfaces, and some basic results about ruled surfaces, we will prove the conjecture for several…

Algebraic Geometry · Mathematics 2014-03-25 Indranil Biswas , R. V. Gurjar , Sagar U. Kolte

In this paper, we proved that, for a semi-stable fibration of a proper smooth surface to a proper smooth curve over a field of positive characteristic, if the generic fiber is ordinary, then the semi-positivity theorem holds. As an…

Algebraic Geometry · Mathematics 2008-05-27 Junmyeong Jang

We make a very detailed analysis of the numerical properties of effective divisors whose support is contained in the exceptional locus of a birational morphism of smooth projective surfaces. As an application we extend Miyaoka's inequality…

Algebraic Geometry · Mathematics 2022-07-19 Vicente Lorenzo , Margarida Mendes Lopes , Rita Pardini

The disk complex of a surface in a 3-manifold is used to define its {\it topological index}. Surfaces with well-defined topological index are shown to generalize well-known classes, such as incompressible, strongly irreducible, and critical…

Geometric Topology · Mathematics 2014-11-11 David Bachman

In this paper, we show the abundance theorem for log canonical surfaces over fields of positive characteristic.

Algebraic Geometry · Mathematics 2019-02-15 Hiromu Tanaka

A determination of the fixed components, base points and irregularity is made for arbitrary numerically effective divisors on any smooth projective rational surface having an effective anticanonical divisor. All of the results are proven…

alg-geom · Mathematics 2009-09-25 Brian Harbourne

The goal of this expository article is to present a proof that is as direct and elementary as possible of the fundamental theorem of complex multiplication (Shimura, Taniyama, Langlands, Tate, Deligne et al.). The article is a revision of…

Number Theory · Mathematics 2007-05-24 J. S. Milne

We prove a generic Torelli theorem for Jacobian elliptic surfaces, provided that the geometric genus is large compared to the irregularity. The result is effective to the extent that defining equations for the base curve are recovered from…

Algebraic Geometry · Mathematics 2023-03-24 N. I. Shepherd-Barron

The purpose of this note is to give a new proof of Alexeev's boundedness result for stable surfaces which is independent of the base field and to highlight some important consequences of this result.

Algebraic Geometry · Mathematics 2016-10-04 Christopher D. Hacon , Sándor J Kovács

We establish the Hasse principle for smooth projective quartic hypersurfaces of dimension greater than or equal to 28 defined over $\mathbb{Q}$.

Number Theory · Mathematics 2019-12-19 Oscar Marmon , Pankaj Vishe

The aim of this paper is to obtain an asymptotic expansion for ergodic integrals of translation flows on flat surfaces of higher genus (Theorem 1) and to give a limit theorem for these flows (Theorem 2).

Dynamical Systems · Mathematics 2011-12-30 Alexander I. Bufetov