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The Manin-Peyre conjecture is established for smooth spherical Fano threefolds of semisimple rank one and type N. Together with the previously solved case T and the toric cases, this covers all types of smooth spherical Fano threefolds. The…

Number Theory · Mathematics 2024-06-14 Valentin Blomer , Jörg Brüdern , Ulrich Derenthal , Giuliano Gagliardi

We give a sufficient condition for a class of tame compactified Landau-Ginzburg models in the sense of Katzarkov-Kontsevich-Pantev to satisfy some versions of their conjectures. We also give examples which satisfy the condition. The…

Algebraic Geometry · Mathematics 2019-02-20 Yota Shamoto

The Manin-Peyre conjecture is established for a class of smooth spherical Fano varieties of semisimple rank one. This includes all smooth spherical Fano threefolds of type T as well as some higher-dimensional smooth spherical Fano…

Number Theory · Mathematics 2023-12-04 Valentin Blomer , Jörg Brüdern , Ulrich Derenthal , Giuliano Gagliardi

We investigate versions of the Shafarevich conjecture, as proved for curves and abelian varieties by Faltings, for other classes of varieties. We first obtain analogues for certain Fano threefolds. We use these results to prove the…

Number Theory · Mathematics 2017-05-10 Ariyan Javanpeykar , Daniel Loughran

We prove that smooth Fano threefolds have toric Landau--Ginzburg models. More precise, we prove that their Landau--Ginzburg models, presented as Laurent polynomials, admit compactifications to families of K3 surfaces, and we describe their…

Algebraic Geometry · Mathematics 2018-08-07 Victor Przyjalkowski

A Fano surface of a smooth cubic threefold X in P^4 parametrizes the lines on X. In this note, we prove that a Fano surface satisfies the Tate conjecture over a field of finite type over the prime field and characteristic not 2.

Algebraic Geometry · Mathematics 2013-04-16 Xavier Roulleau

This is a review of the theory of toric Landau-Ginzburg models - the effective approach to mirror symmetry for Fano varieties. We mainly focus on the cases of dimensions 2 and 3, as well as on the case of complete intersections in weighted…

Algebraic Geometry · Mathematics 2019-05-22 Victor Przyjalkowski

Let $Y$ be a smooth quartic double solid regarded as a degree 4 hypersurface of the weighted projective space $\mathbb{P}(1,1,1,1,2)$. We study the multiplication of Hochschild-Serre algebra of its Kuznetsov component $\mathcal{K}u(Y)$, via…

Algebraic Geometry · Mathematics 2024-10-23 Xun Lin , Shizhuo Zhang

We observe a method for finding weak Landau-Ginzburg models for Fano varieties and find them for smooth Fano threefolds of genera 9, 10, and 12.

Algebraic Geometry · Mathematics 2018-08-07 Victor Przyjalkowski

In this paper, we prove the conic version of YTD conjecture on log Fano manifolds.

Differential Geometry · Mathematics 2019-04-01 Gang Tian , Feng Wang

The aim of this paper is to prove Golyshev's conjecture in the cases of Fano threefolds $V_{10}$ and $V_{14}$. This conjecture states modularity of D3 equations for smooth Fano threefolds with Picard group Z. More precisely, we find…

Algebraic Geometry · Mathematics 2007-07-25 Victor Przyjalkowski

The conjectures of Manin and Peyre are confirmed for a certain threefold.

Number Theory · Mathematics 2016-09-12 Valentin Blomer , Jörg Brüdern , Per Salberger

We study the spaces of rational curves on Fano threefolds with Gorenstein terminal singularities. We generalize the results regarding Geometric Manin's Conjecture for smooth Fano threefolds, including the classification of subvarieties with…

Algebraic Geometry · Mathematics 2025-05-23 Fumiya Okamura

We consider the conjectures from the paper by Katzarkov, Kontsevich, and Pantev about Landau-Ginzburg Hodge numbers associated to tamely compactifiable Landau-Ginzburg models. We test these conjectures in case of dimension two, verifying…

Algebraic Geometry · Mathematics 2018-10-15 Valery Lunts , Victor Przyjalkowski

We introduce an explicit class of tempered Laurent polynomials in the sense of Villegas and Doran--Kerr in $n \leqslant 4$ variables including all Landau--Ginzburg models for smooth Fano threefolds with very ample anticanonical class. We…

Algebraic Geometry · Mathematics 2026-05-26 Mikhail Ovcharenko

We prove the Shafarevich conjecture for Fano threefolds of Picard rank 1, index 1 and degree 4.

Algebraic Geometry · Mathematics 2022-07-13 Philipp Licht

We conjecture that the number of components of the fiber over infinity of Landau--Ginzburg model for a smooth Fano variety $X$ equals the dimension of the anticanonical system of $X$. We verify this conjecture for log Calabi--Yau…

Algebraic Geometry · Mathematics 2023-02-16 Ivan Cheltsov , Victor Przyjalkowski

We settle the last open case of Kuznetsov's conjecture on the derived categories of Fano threefolds. Contrary to the original conjecture, we prove the Kuznetsov components of quartic double solids and Gushel-Mukai threefolds are never…

Algebraic Geometry · Mathematics 2023-04-04 Arend Bayer , Alexander Perry

We study the Hodge numbers of Landau-Ginzburg models as defined by Katzarkov, Kontsevich and Pantev. First we show that these numbers can be computed using ordinary mixed Hodge theory, then we give a concrete recipe for computing these…

Algebraic Geometry · Mathematics 2019-11-19 Andrew Harder

We show that the Friedlander-Mazur conjecture holds for a complex smooth projective variety X of dimension three implies the standard conjectures hold for X. This together with a result of Friedlander yields the equivalence of the two…

Algebraic Geometry · Mathematics 2021-11-05 Jin Cao , Wenchuan Hu
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