English
Related papers

Related papers: The Sarkisov program

200 papers

In this paper we show that any two birational Mori fiber spaces of $\Qq$-factorial gklt g-pairs are connected by a finite sequence of Sarkisov links.

Algebraic Geometry · Mathematics 2019-09-20 Jihao Liu

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 and Y be horospherical Mori fibre spaces which are birational equivariantly with respect to the group action. Then, there is a horospherical Sarkisov program from X/S to Y /T .

Algebraic Geometry · Mathematics 2022-12-21 Enrica Floris , Boris Pasquier

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

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

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

We can run the MMP for any divisor on any $\mathbb{Q}$-factorial projective toric variety. We show that two Mori fiber spaces, which are outputs of the above MMP, are connected by finitely many elementary transforms.

Algebraic Geometry · Mathematics 2022-07-14 Keisuke Miyamoto

We introduce homological and homotopical $r$-syzygies of Mori fibre spaces as a generalization of Sarkisov links and relations of Sarkisov links. For any proper morphism $Y/R$, we construct a contractible (if not empty) CW complex such that…

Algebraic Geometry · Mathematics 2024-05-22 Yang He

We study the connected algebraic groups acting on Mori fibrations $X \to Y$ with $X$ a rational threefold and $\mathrm{dim}(Y) \geq 1$. More precisely, for these fibre spaces we consider the neutral component of their automorphism groups…

Algebraic Geometry · Mathematics 2021-10-28 Jérémy Blanc , Andrea Fanelli , Ronan Terpereau

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 prove a version of the Sarkisov program for volume preserving birational maps of Mori fibred Calabi-Yau pairs valid in all dimensions. Our theorem generalises the theorem of Usnich and Blanc on factorisations of birational maps of the…

Algebraic Geometry · Mathematics 2015-04-03 Alessio Corti , Anne-Sophie Kaloghiros

We determine the rational real forms of the complex Mori fiber spaces for which the identity component of the automorphism group is a maximal connected algebraic subgroup of $\mathrm{Bir}(\mathbb{P}_{\mathbb{C}}^{3})$. This yields a list of…

Algebraic Geometry · Mathematics 2024-05-27 Ronan Terpereau , Susanna Zimmermann

We develop some concrete methods to build Sarkisov links, starting from Mori fibre spaces. This is done by studying low rank Cox rings and their properties. As part of this development, we give an algorithm to construct explicitly the…

Algebraic Geometry · Mathematics 2022-07-22 Hamid Abban

Let (S, BS) be the log-pair associated with a compactification of a given smooth quasi-projective surface V . Under the assumption that the boundary BS is irreducible, we propose an algorithm, in the spirit of the (log) Sarkisov program, to…

Algebraic Geometry · Mathematics 2009-02-11 Adrien Dubouloz , Stéphane Lamy

We discuss the problem on the connectedness of various webs of lattice polytopes by introducing a geometric point of view from the toric Mori theory. To this end, we provide a combinatorial description of toric Sarkisov links in terms of…

Algebraic Geometry · Mathematics 2022-07-06 Makoto Miura

We study the existence and properties of birationally equivalent models for elliptically fibered varieties. In particular these have either the structure of Mori fiber spaces or, assuming some standard conjectures, minimal models with a…

Algebraic Geometry · Mathematics 2021-02-24 Antonella Grassi , David Wen

We prove a relative version of the theorem of Cho, Miyaoka and Shepherd-Barron: a Mori fibre space of maximal length is birational to a projective bundle.

Algebraic Geometry · Mathematics 2017-11-27 Andreas Höring , Carla Novelli

We study Mori fiber spaces over a two-dimensional base which satisfy the semistability assumption. As an application of our technique we give a new proof of the existence of semistable 3-fold flips.

Algebraic Geometry · Mathematics 2015-06-26 Yuri Prokhorov

The contact structure of two meromorphic curves gives a factorization of their jacobian.

Algebraic Geometry · Mathematics 2007-05-23 S. S. Abhyankar , A. Assi

We showed that the strong Sarkisov Program of dimension $d$ can be derived from termination of specific log flips in dimension $\leq d-1$. As a corollary, we show that the strong Sarkisov Program holds in dimension 4. Additionally, we prove…

Algebraic Geometry · Mathematics 2024-10-15 Yang He
‹ Prev 1 2 3 10 Next ›