On the shape of a high-dimensional random lattice

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Abstract/Contents

Abstract
The statistics concerning lattices in high dimensions (call "the geometry of numbers" in the literature) used to be studied intensively in the mid-20th century, especially by C.A. Rogers and Wolfgang Schmidt. By perhaps an accident of history, it has become forgotten by mathematicians for almost 50 years. Yet there is still plenty of wonderful mathematics left there to develop, and furthermore, recently people in various sectors — computer science, cryptography, number theory, and even dynamics — are starting to realize the need and benefits of understanding high-dimensional lattices and related topics. This thesis is largely in three parts. In Chapter 1, we give an exposition on the Rogers integration formula and its variants, the main technical device in the study of high-dimensional lattices. In Chapter 2, inspired by the ideas of Schmidt, we prove that the lengths of the first O(n^(1/2)) shortest vectors of an n-dimensional random lattice exhibit a Poisson distribution as n → ∞, improving a recent result of Sodergren. In Chapters 3 and 4, we prove a few previously unknown facts on the statistics of the LLL bases that help answer a few questions that have been raised regarding the peculiar behavior of the LLL algorithm, and then present an experimental result that supports our theoretical conclusions and suggests where future research could be headed to.

Description

Type of resource text
Form electronic; electronic resource; remote
Extent 1 online resource.
Publication date 2015
Issuance monographic
Language English

Creators/Contributors

Associated with Kim, Seungki
Associated with Stanford University, Department of Mathematics.
Primary advisor Venkatesh, Akshay, 1981-
Thesis advisor Venkatesh, Akshay, 1981-
Thesis advisor Boneh, Dan
Thesis advisor Soundararajan, Kannan, 1973-
Advisor Boneh, Dan
Advisor Soundararajan, Kannan, 1973-

Subjects

Genre Theses

Bibliographic information

Statement of responsibility Seungki Kim.
Note Submitted to the Department of Mathematics.
Thesis Thesis (Ph.D.)--Stanford University, 2015.
Location electronic resource

Access conditions

Copyright
© 2015 by Seung Ki Kim
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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