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Integral Points on Coarse Hilbert Moduli Schemes

This article examines integral points on specific mathematical surfaces.

― 4 min read


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Table of Contents

This article explores the topic of Integral Points on coarse Hilbert moduli schemes. We investigate various mathematical methods and results in understanding how these points behave, particularly in relation to specific mathematical surfaces known as the Clebsch-Klein surfaces.

Background Overview

To get started, we first introduce some concepts related to abelian varieties and moduli schemes. An abelian variety is a type of complex algebraic variety that behaves like a generalization of elliptic curves. Moduli schemes are mathematical structures that classify certain types of algebraic objects, in this case, abelian varieties.

Coarse Hilbert Moduli Schemes

A coarse Hilbert moduli scheme can be thought of as a kind of mathematical space that efficiently organizes all the different forms of a particular type of structure-in our case, abelian varieties-while ignoring certain details that are not essential for classification.

Definition and Properties

These schemes possess various properties that make them useful in number theory and algebraic geometry. Integral points on these schemes are of great interest, as they provide essential information about the structures being studied.

Integral Points

Integral points refer to solutions of the equations defining our schemes that have integer coordinates. Understanding where these points lie helps mathematicians grasp how these structures can be represented numerically.

Techniques to Study Integral Points

The study of integral points often involves a variety of techniques such as Height Bounds, which measure the size of the coordinates of solutions, and the use of isogeny estimates, which relate different abelian varieties through morphisms.

Clebsch-Klein Surfaces

The Clebsch-Klein surfaces are special types of algebraic surfaces that have captured the attention of mathematicians due to their fascinating properties. They serve as a key example in studying integral points.

Historical Context

These surfaces were initially studied in the 19th century and have since become a central topic in modern algebraic geometry. Their structure lends itself well to the examination of integral points.

Diophantine Equations

Diophantine equations are polynomial equations that seek integer solutions. The equations related to the Clebsch-Klein surfaces provide a concrete example of how integral points can be analyzed.

The Importance of Solutions

Finding solutions to these equations is significant not only for theoretical reasons but also for practical applications in number theory. The quest for solutions illustrates the deep connections between various areas of mathematics.

Height Bounds

Height bounds are essential tools in the study of integral points. They restrict the possible size of the coordinates in solutions, allowing mathematicians to apply various number-theoretic techniques.

Applications of Height Bounds

By establishing height bounds, we can derive important finiteness results about the number of integral points, leading to a more profound understanding of the underlying mathematical structures.

The Effective Shafarevich Conjecture

The effective Shafarevich conjecture is a well-known hypothesis in arithmetic geometry that concerns the finiteness of rational points on abelian varieties. Its implications resonate throughout the study of integral points on moduli schemes.

Relating the Conjecture to Our Study

In the context of coarse Hilbert moduli schemes, the conjecture allows us to establish significant bounds and ultimately identify the behavior of integral points on the Clebsch-Klein surfaces.

Modular Curves and Their Role

Modular curves play a crucial role in linking different areas of mathematics, particularly number theory and algebraic geometry. They provide frameworks for understanding the relationships between abelian varieties.

Construction of Modular Curves

The construction of these curves involves intricate geometric and algebraic techniques, showcasing the beauty of modern mathematics.

Theorems and Results

Throughout our study, we derive several theorems and results that shed light on the nature of integral points on coarse Hilbert moduli schemes.

Integral Points on the Clebsch-Klein Surfaces

By applying the insights gained from our exploration, we can explicitly bound the number of integral points on these surfaces and examine their properties in detail.

Future Directions

The field is rich with open questions and directions for future research. Continued exploration of integral points, their bounds, and their connections to other mathematical areas remains a vibrant part of modern mathematics.

The Ongoing Quest

As mathematicians work to solve these intricate problems, the results have implications that extend far beyond the original questions, influencing various branches of mathematics.

Conclusion

In summary, this article delves into the intricate world of integral points on coarse Hilbert moduli schemes, using the Clebsch-Klein surfaces as a focal point. As we continue to uncover the relationships between these different mathematical structures, new discoveries await.


This comprehensive exploration provides a solid foundation for further inquiry into the profound world of number theory and algebraic geometry surrounding integral points on moduli schemes.

Original Source

Title: Integral points on coarse Hilbert moduli schemes

Abstract: We continue our study of integral points on moduli schemes by combining the method of Faltings (Arakelov, Parsin, Szpiro) with modularity results and Masser-W\"ustholz isogeny estimates. In this work we explicitly bound the height and the number of integral points on coarse Hilbert moduli schemes outside the branch locus. In the first part we define and study coarse Hilbert moduli schemes with their heights and branch loci. In the second part we establish the effective Shafarevich conjecture for abelian varieties $A$ over a number field $K$ such that $A_{\bar{K}}$ has CM or $A_{\bar{K}}$ is of GL2-type and isogenous to all its $G_\mathbb Q$-conjugates. In the third part we continue our explicit study of the Parsin construction given by the forgetful morphism of Hilbert moduli schemes. We now work out our strategy for arbitrary number fields $K$ and we explicitly bound the number of polarizations and module structures on abelian varieties over $K$ with real multiplications. In the last part we illustrate our results by applying them to two classical surfaces first studied by Clebsch (1871) and Klein (1873): We explicitly bound the Weil height and the number of their integral points.

Authors: Rafael von Kanel, Arno Kret

Last Update: 2023-07-13 00:00:00

Language: English

Source URL: https://arxiv.org/abs/2307.06944

Source PDF: https://arxiv.org/pdf/2307.06944

Licence: https://creativecommons.org/licenses/by/4.0/

Changes: This summary was created with assistance from AI and may have inaccuracies. For accurate information, please refer to the original source documents linked here.

Thank you to arxiv for use of its open access interoperability.

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