English
Related papers

Related papers: Variations on Log Sarkisov Program for Surfaces

200 papers

Let (S, B) be the log pair associated with a projective completion of a smooth quasi-projective surface V . Under the assumption that the boundary B is irreducible, we obtain an algorithm to factorize any automorphism of V into a sequence…

Algebraic Geometry · Mathematics 2016-10-25 Adrien Dubouloz , Stéphane Lamy

The purpose of this paper is two-fold. The first is to give a tutorial introduction to the Sarkisov program, a 3-dimensional generalization of Castelnuovo-N\"other Theorem ``untwisting" birational maps between Mori fiber spaces, which was…

alg-geom · Mathematics 2015-06-30 Andrea Bruno , Kenji Matsuki

In this article, we prove the Sarkisov Program for co-rank one foliations with suitable singularities on normal projective threefolds. We also exibit a weaker version of birational super-rigidity between two foliated Mori fiber spaces with…

Algebraic Geometry · Mathematics 2026-04-01 Roktim Mascharak

By applying the theory of the minimal model program for adjoint foliated structures, we establish the Sarkisov program for algebraically integrable foliations on klt varieties: any two Mori fiber spaces of such structure are connected by a…

Algebraic Geometry · Mathematics 2025-05-22 Yifei Chen , Jihao Liu , Yanze Wang

We show that the Sarkisov program holds for $\mathbb{Q}$-factorial log surfaces and log canonical surfaces over any algebraically closed field.

Algebraic Geometry · Mathematics 2019-12-13 Keisuke Miyamoto

We introduce the notion of a relative log scheme with boundary: a morphism of log schemes together with a (log schematically) dense open immersion of its source into a third log scheme. The sheaf of relative log differentials naturally…

Algebraic Geometry · Mathematics 2014-08-15 Elmar Grosse-Klönne

In the case of toric varieties, we continue the pursuit of Kontsevich's fundamental insight, Homological Mirror Symmetry, by unifying it with the Mori program. We give a refined conjectural version of Homological Mirror Symmetry relating…

Algebraic Geometry · Mathematics 2013-02-05 Matthew Ballard , Colin Diemer , David Favero , Ludmil Katzarkov , Gabriel Kerr

We prove the Sarkisov program for projective surfaces over excellent base rings, including the case of non-perfect base fields $k$ of characteristic $p>0$. We classify the Sarkisov links between Mori fibre spaces and their relations for…

Algebraic Geometry · Mathematics 2025-10-21 Fabio Bernasconi , Andrea Fanelli , Julia Schneider , Susanna Zimmermann

We construct canonical semi-orthogonal decompositions for derived categories of smooth projective surfaces. These decompositions are compatible with the operations in the minimal model program, such as blow-ups and conic bundles. Therefore…

Algebraic Geometry · Mathematics 2025-12-05 Alexey Elagin , Julia Schneider , Evgeny Shinder

In this paper we develop a Morse-like theory in order to decompose birational maps and morphisms of smooth projective varieties defined over a field of characteristic zero into more elementary steps which are locally \'etale isomorphic to…

Algebraic Geometry · Mathematics 2007-05-23 Jaroslaw Wlodarczyk

The moduli space of hyperplanes in projective space has a family of geometric and modular compactifications that parametrize stable hyperplane arrangements with respect to a weight vector. Among these, there is a toric compactification that…

Algebraic Geometry · Mathematics 2025-05-07 Patricio Gallardo , Luca Schaffler

The Sarkisov Program studies birational maps between varieties that are end products of the Minimal Model Program (MMP) on nonsingular uniruled varieties. If X and Y are terminal Q-factorial projective varieties endowed with a structure of…

Algebraic Geometry · Mathematics 2012-07-23 Anne-Sophie Kaloghiros

This paper resolves several outstanding questions regarding the Minimal Model Program for klt threefolds in mixed characteristic. Namely termination for pairs which are not pseudo-effective, finiteness of minimal models and the Sarkisov…

Algebraic Geometry · Mathematics 2024-02-21 Liam Stigant

For a general Fano $3$-fold of index $1$ in the weighted projective space $\mathbb{P}(1,1,1,1,2,2,3)$ we construct $2$ new birational models that are Mori fibre spaces, in the framework of the so-called Sarkisov program. We highlight a…

Algebraic Geometry · Mathematics 2022-07-22 Hamid Abban , Francesco Zucconi

Let $X$ be a fixed projective scheme which is flat over a base scheme $S$. The association taking a quasi-projective $S$-scheme $Y$ to the scheme parametrizing $S$-morphisms from $X$ to $Y$ is functorial. We prove that this functor…

Algebraic Geometry · Mathematics 2021-07-19 Lucas das Dores

We show that every coarse moduli space, parametrizing complex special linear rank two local systems with fixed boundary traces on a surface with nonempty boundary, is log Calabi-Yau in that it has a normal projective compactification with…

Algebraic Geometry · Mathematics 2020-10-07 Junho Peter Whang

Building on the work of the fourth author in math.AG/9904074, we prove the weak factorization conjecture for birational maps in characteristic zero: a birational map between complete nonsingular varieties over an algebraically closed field…

Algebraic Geometry · Mathematics 2007-05-23 Dan Abramovich , Kalle Karu , Kenji Matsuki , Jarosław Włodarczyk

In this paper we prove that the problem of deciding contractibility of an arbitrary closed curve on the boundary of a 3-manifold is in NP. We emphasize that the manifold and the curve are both inputs to the problem. Moreover, our algorithm…

Computational Geometry · Computer Science 2020-12-07 Erin Wolf Chambers , Francis Lazarus , Arnaud de Mesmay , Salman Parsa

We study the compactification of the locus parametrizing lines with a fixed intersection to a given line, inside the moduli space of line arrangements in the projective plane constructed for weight one by Hacking-Keel-Tevelev and Alexeev…

Algebraic Geometry · Mathematics 2018-07-25 Kenneth Ascher , Patricio Gallardo

We give elementary constructions of manifold with corner structures and associative gluing maps on compactifications of spaces of infinite, half infinite, and finite Morse flow lines.

Differential Geometry · Mathematics 2016-01-20 Katrin Wehrheim
‹ Prev 1 2 3 10 Next ›