Bounds for sets with no nontrivial polynomial progressions

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Abstract/Contents

Abstract
In this thesis, we prove quantitative bounds in the polynomial Szemer\'edi theorem in several situations in which no bounds were previously known. In Chapter 2, we prove that if P_1, P_2\in\mathbb{Z}[y] are affine-linearly independent, then any subset of \mathbb{F}_q with no nontrivial polynomial progressions of the form x, x+P_1(y), x+P_2(y) must have size \ll_{P_1, P_2}q^{23/24}, provided the characteristic of \mathbb{F}_q is large enough. In Chapter 3, we prove that if P_1, \dots, P_m\in\mathbb{Z}[y] are affine-linearly independent, then any subset of \mathbb{F}_q with no nontrivial polynomial progressions of the form x, x+P_1(y), \dots, x+P_m(y) must have size \ll_{P_1, \dots, P_m}q^{1-\gamma_{P_1, \dots, P_m}} for some \gamma_{P_1, \dots, P_m}> 0, again provided that the characteristic of \mathbb{F}_q is large enough. In Chapter 4, we prove that any subset of \{1, \dots, N\} with no nontrivial progressions of the form x, x+y, x+y^2 must have size \ll N/(\log\log{N})^{2^{-157}}. In Chapter 5, we prove that if P_1, \dots, P_m\in\mathbb{Z}[y] have distinct degrees, then any subset of \{1, \dots, N\} with no nontrivial polynomial progressions of the form x, x+P_1(y), \dots, x+P_m(y) must have size \ll N/(\log\log{N})^{1-\gamma_{P_1, \dots, P_m}} for some \gamma_{P_1, \dots, P_m}> 0. In the final chapter, Chapter 6, we move to the nonabelian setting and prove power-saving bounds for subsets of nonabelian finite simple groups with no nontrivial progressions of the form x, xy, xy^2.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2019; ©2019
Publication date 2019; 2019
Issuance monographic
Language English

Creators/Contributors

Author Peluse, Sarah Anne
Degree supervisor Soundararajan, Kannan, 1973-
Thesis advisor Soundararajan, Kannan, 1973-
Thesis advisor Fox, Jacob, 1984-
Thesis advisor Manners, Frederick
Degree committee member Fox, Jacob, 1984-
Degree committee member Manners, Frederick
Associated with Stanford University, Department of Mathematics.

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Sarah Peluse.
Note Submitted to the Department of Mathematics.
Thesis Thesis Ph.D. Stanford University 2019.
Location electronic resource

Access conditions

Copyright
© 2019 by Sarah Anne Peluse
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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