English
Related papers

Related papers: Sarkisov program for algebraically integrable and …

200 papers

We establish the Minimal Model Program for arithmetic threefolds whose residue characteristics are greater than five. In doing this, we generalize the theory of global $F$-regularity to mixed characteristic and identify certain stable…

Algebraic Geometry · Mathematics 2022-12-07 Bhargav Bhatt , Linquan Ma , Zsolt Patakfalvi , Karl Schwede , Kevin Tucker , Joe Waldron , Jakub Witaszek

This work is concerned with Mishchenko-Fomenko subalgebras and their restrictions to the adjoint orbits in a finite-dimensional complex semisimple Lie algebra. In this setting, it is known that each Mishchenko-Fomenko subalgebra restricts…

Symplectic Geometry · Mathematics 2018-03-14 Peter Crooks , Stefan Rosemann , Markus Roeser

This paper presents two existence h-principles, the first for conformal symplectic structures on closed manifolds, and the second for leafwise conformal symplectic structures on foliated manifolds with non empty boundary. The latter…

Symplectic Geometry · Mathematics 2021-09-09 Melanie Bertelson , Gael Meigniez

We study minimal transverse foliations which are $R$-covered. If in addition the dimension of the ambient manifold is $3$, and the foliations are Anosov foliations we give necessary and sufficient conditions for the intersected foliation to…

Geometric Topology · Mathematics 2025-01-27 Thierry Barbot , Sergio R. Fenley , Rafael Potrie

We construct geometric compactifications of the moduli space $F_{2d}$ of polarized K3 surfaces, in any degree $2d$. Our construction is via KSBA theory, by considering canonical choices of divisor $R\in |nL|$ on each polarized K3 surface…

Algebraic Geometry · Mathematics 2023-04-04 Valery Alexeev , Philip Engel

This is the third paper in a series of work on weighted stable elliptic surfaces - elliptic fibrations with section and marked fibers weighted between zero and one. Motivated by Hassett's weighted pointed stable curves, we use the log…

Algebraic Geometry · Mathematics 2018-05-08 Kenneth Ascher , Dori Bejleri , Giovanni Inchiostro

Let $(G,g)$ be a 4-dimensional Riemannian Lie group with a 2-dimensional left-invariant, conformal foliation $\F$ with minimal leaves. Let $J$ be an almost Hermitian structure on $G$ adapted to the foliation $\F$. We classify such…

Differential Geometry · Mathematics 2022-01-12 Emma Andersdotter Svensson , Sigmundur Gudmundsson

We introduce a completely integrable system on the Grassmannian of 2-planes in an n-space associated with any triangulation of a polygon with n sides, and compute the potential function for its Lagrangian torus fiber. The moment polytopes…

Symplectic Geometry · Mathematics 2019-07-05 Yuichi Nohara , Kazushi Ueda

We give a characterization theorem for non-degenerated plane foliations of degree different from 1 having a rational first integral. Moreover, we prove that the degree $r$ of a non-degenerated foliation as above provides the minimum number,…

Dynamical Systems · Mathematics 2008-12-15 C. Galindo , F. Monserrat

Deformation of morphisms along leaves of foliations define the tangential foliation on the corresponding space of morphisms. We prove that codimension one fo-liations having a tangential foliation with at least one non-algebraic leaf are…

Classical Analysis and ODEs · Mathematics 2021-02-23 Frank Loray , Jorge Pereira , Frédéric Touzet

In this work, we construct some irreducible components of the space of two-dimensional holomorphic foliations on $\mathbb{P}^n$ associated to some algebraic representations of the affine Lie algebra $\mathfrak{aff}(\mathbb{C})$. We give a…

Algebraic Geometry · Mathematics 2018-10-03 Raphael Constant da Costa

Let (M,{\eta},{\xi},{\Phi},g) be a compact quasi-regular Sasakian 5-manifold with finite cyclic quotient foliation singularities of type (1/r)(1,a). First, we derive the foliation minimal model program by applying the resolution of cyclic…

Differential Geometry · Mathematics 2022-03-04 Shu-Cheng Chang , Chien Lin , Chin-Tung Wu

We give lower bounds for the degree of the discriminant with respect to y of separable polynomials f in K[x,y] over an algebraically closed field of characteristic zero. Depending on the invariants involved in the lower bound, we give a…

Algebraic Geometry · Mathematics 2015-07-07 Denis Simon , Martin Weimann

We develop two new tools for use in Alexandrov geometry: a theory of ramified orientable double covers and a particularly useful version of the Slice Theorem for actions of compact Lie groups. These tools are applied to the classification…

Differential Geometry · Mathematics 2020-01-23 John Harvey , Catherine Searle

The purpose of this paper is to provide a new account of multiplicity for finite morphisms between smooth projective varieties. Traditionally, this has been defined using commutative algebra in terms of the length of integral ring…

Algebraic Geometry · Mathematics 2007-05-23 Tristram de Piro

Every compact 3-Sasakian 7-manifold $M$ admits a canonical 2-parameter family of co-closed $\text{G}_2$-structures $\varphi_{a,b}$ for $a,b > 0$, as well as a foliation by $\varphi_{a,b}$-associative 3-folds whose leaf space $X$ is a…

Differential Geometry · Mathematics 2022-09-13 Gavin Ball , Jesse Madnick

Let $T$ be a first-order theory. A correspondence is established between internal covers of models of $T$ and definable groupoids within $T$. We also consider amalgamations of independent diagrams of algebraically closed substructures, and…

Logic · Mathematics 2024-07-30 Ehud Hrushovski

We study left-invariant foliations $\mathcal{F}$ on Riemannian Lie groups $G$ generated by a subgroup $K$. We are interested in such foliations which are conformal and with minimal leaves of codimension two. We classify such foliations…

Differential Geometry · Mathematics 2020-10-28 Elsa Ghandour , Sigmundur Gudmundsson , Thomas Turner

We prove that sufficiently collapsed, closed and irreducible three-dimensional Alexandrov spaces are modeled on one of the eight three-dimensional Thurston geometries. This extends a result of Shioya and Yamaguchi, originally formulated for…

Differential Geometry · Mathematics 2020-05-21 Fernando Galaz-Garcia , Luis Guijarro , Jesús Núñez-Zimbrón

We survey recent progress on the birational geometry of foliations on complex varieties. We focus on the MMP viewpoint: singularities, adjunction and applications to the MMP for foliations on surfaces and to the existence of flips on…

Algebraic Geometry · Mathematics 2026-04-13 Paolo Cascini , Calum Spicer
‹ Prev 1 3 4 5 6 7 10 Next ›