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Related papers: Height pairing and nearby cycles

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Given a smooth proper family $\phi:X\rightarrow S$, we study the (quasi)-periods of the fibers of $\phi$ as (germs of) functions on $S$. We show that they field they generate has the same algebraic closure as that given by the flag variety…

Algebraic Geometry · Mathematics 2024-10-03 Ben Bakker , Jonathan Pila , Jacob Tsimerman

We Prove That The Uniform Upper Bound for the Number Of Limit Cycles Of The Lienard Equation of Degree 4 Can be equals to 2. Further We Suggest to Embedding Planar Lienard Equations In Higher Dimension and Present question of completly…

Classical Analysis and ODEs · Mathematics 2011-02-01 Ali Taghavi

Using twisted nearby cycles, we define a new notion of slopes for complex holonomic D-modules. We prove a boundedness result for these slopes, study their functoriality and use them to characterize regularity. For a family of (possibly…

Algebraic Geometry · Mathematics 2019-02-20 Jean-Baptiste Teyssier

We generalize the finiteness theorem for the locus of Hodge classes with fixed self-intersection number, due to Cattani, Deligne, and Kaplan, from Hodge classes to self-dual classes. The proof uses the definability of period mappings in the…

Algebraic Geometry · Mathematics 2026-05-06 Benjamin Bakker , Thomas W. Grimm , Christian Schnell , Jacob Tsimerman

We consider quadric surface fibrations over curves, defined over algebraically closed and finite fields. Our goal is to understand, in geometric terms, spaces of sections for such fibrations. We analyze varieties of maximal isotropic…

Algebraic Geometry · Mathematics 2011-11-07 Brendan Hassett , Yuri Tschinkel

We continue the B-model development of the open/closed correspondence proposed by Mayr and Lerche-Mayr, complementing the A-model study in the preceding joint works with Liu and providing a Hodge-theoretic perspective. Given a corresponding…

Algebraic Geometry · Mathematics 2025-07-15 Song Yu

We prove the Topological Mirror Symmetry Conjecture by Hausel-Thaddeus for smooth moduli spaces of Higgs bundles of type $\operatorname{SL}_n$ and $\operatorname{PGL}_n$. More precisely, we establish an equality of stringy Hodge numbers for…

Algebraic Geometry · Mathematics 2019-10-29 Michael Groechenig , Dimitri Wyss , Paul Ziegler

Suppose $H$ is a hyperbolic subgroup of a hyperbolic group $G$. Assume there exists $n > 0$ such that the intersection of $n$ essentially distinct conjugates of $H$ is always finite. Further assume $G$ splits over $H$ with hyperbolic vertex…

Group Theory · Mathematics 2007-05-23 Mahan Mitra

For line bundles on arithmetic varieties we construct height functions using arithmetic intersection theory. In the case of an arithmetic surface, generically of genus g, for line bundles of degree g equivalence is shown to the height on…

alg-geom · Mathematics 2008-02-03 Joerg Jahnel

We introduce the singular cohomology ring of a matroid which extends the Chow ring of a matroid. This is defined as the singular cohomology ring of a certain quasi-projective toric variety associated to the matroid. Using the matroidal…

Combinatorics · Mathematics 2026-03-20 Kyle Binder

The purpose of this paper is to show the relationship in all dimensions between the structural (diffraction pattern) aspect of tilings (described by \v{C}ech cohomology of the tiling space) and the spectral properties (of Hamiltonians…

Mathematical Physics · Physics 2023-05-18 Eric Akkermans , Yaroslav Don , Jonathan Rosenberg , Claude L. Schochet

A linear cycle in a hypergraph $H$ is a cyclic sequence of hyperedges such that two consecutive hyperedges intersect in exactly one element and two nonconsecutive hyperedges are disjoint and $\alpha(H)$ denotes the size of a largest…

Combinatorics · Mathematics 2016-09-16 Beka Ergemlidze , Ervin Győri , Abhishek Methuku

We present a short proof of the Jordan-H\"older theorem with uniqueness for semimodular semilattice: Given two maximal chains in a semimodular semilattice of finite height, they both have the same length. Moreover there is a unique…

Combinatorics · Mathematics 2019-09-20 Pavel Paták

We construct a cohomological mixed Hodge complex on a fiber of a weakly semistable fibration using logarithmic de Rham complex.

Algebraic Geometry · Mathematics 2007-05-23 Yujiro Kawamata

The purpose of this paper is to give a linear and effective height inequality for algebraic points on curves over functional fields. Our height inequality can be viewed as the logarithmic canonical class inequality of a punctured curve over…

alg-geom · Mathematics 2008-02-03 Sheng-Li Tan

The purpose of this note is to give an account of a well-known folklore result: the Hodge structure on the second cohomology of a compact hyperk\"ahler manifold uniquely determines Hodge structures on all higher cohomology groups. We…

Algebraic Geometry · Mathematics 2021-05-14 Andrey Soldatenkov

The purpose of this work is to generalize, in the context of 1-motives, the $p$-adic height pairings constructed by B. Mazur and J. Tate on abelian varieties. Following their approach, we define a global pairing between the rational points…

Algebraic Geometry · Mathematics 2020-07-10 Carolina Rivera Arredondo

We construct some analog of cubical Bloch's higher Chow groups. Instead of considering cycles in $X\times\mathbb A^n$ we consider varieties $Y$ over $X$ together with a distinguished element in the $n$-th exterior power of the…

Algebraic Geometry · Mathematics 2024-02-12 Vasily Bolbachan

We give a short proof of Belaga's result on bounds to perigees of $(3x+d)$-cycles of a given oddlength. We also reformulate the Collatz cycle conjecture which is rather a algorithmic problem into a purely arithmetic problem.

Number Theory · Mathematics 2014-09-23 Masayoshi Kaneda

Heegner cycles are higher weight analogues of Heegner points. Their arithmetic intersection numbers also appear as Fourier coefficients of modular forms and often belong to abelian extensions of imaginary-quadratic fields. Rotger and Seveso…

Number Theory · Mathematics 2025-09-15 Hazem Hassan