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Counting Rational Points on Low-Degree del Pezzo Surfaces With Automorphic Forms
Counting Rational Points on Low-Degree del Pezzo Surfaces With Automorphic Forms
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103518
- ISBN
- 9798280751156
- DDC
- 510
- 저자명
- Woo, Katharine.
- 서명/저자
- Counting Rational Points on Low-Degree del Pezzo Surfaces With Automorphic Forms
- 발행사항
- [Sl] : Princeton University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 211 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
- 주기사항
- Advisor: Sarnak, Peter.
- 학위논문주기
- Thesis (Ph.D.)--Princeton University, 2025.
- 초록/해제
- 요약We study Manin's conjecture for certain families of low-degree del Pezzo surfaces, i.e. asymptotics for the number of rational points of increasing height. In general, problems about rational points on del Pezzo surfaces are considered harder as the degree gets lower. In this thesis, we resolve Manin's conjecture for all Chatelet surfaces over Q, which are del Pezzo surfaces of degree four, and establish the first asymptotic count for a set of rational points on a del Pezzo surface of degree one.In Chapter 2, we prove the key analytic ingredient necessary in both arguments - a bound on the sums of the absolute values of the Hecke eigenvalues of cuspidal automorphic forms of GL2(AQ) along polynomial values. We use pieces of the Sato-Tate distribution to prove a logarithmic power savings over the trivial bound in the applicable cases; additionally we classify, when the polynomial is solvable, exactly when a logarithmic power savings occurs using analysis about the base change of the cuspidal representation.In Chapter 3, we study Manin's conjecture for Chatelet surfaces - the proper smooth models of the affine surfaces x2 +∆y2 = f(z), where f(z) is a squarefree polynomial of degree 3 or 4. Previous works handle the case of ∆ = 1 (and extend to any ∆ 0 such that Q( √ −∆) has class number one). We resolve the conjecture by viewing the point-count through an automorphic lens and connecting it to the sums of Chapter 2.In Chapter 4, we study rational points on the singular del Pezzo surface of degree one defined by y2 = x3 +AxQ(u, v)2 +BQ(u, v)3, where 4A3 −27B2 ≠ 0 and Q(u, v) is a positive-definite quadratic form. The main algebraic tool used is a parameterization of the integral points on quadratic twists of elliptic curves by binary quartic forms; this parameterization was first observed by Mordell and uses syzygys of binary quartic forms. We then reduce the problem to correlation sums of binary quadratic and binary quartic forms, which are analyzed using the central analytic ingredients of Chapters 2 and 3. As a result, we establish an asymptotic count for rational points that are integral with respect to the singularity on these del Pezzo surfaces.
- 일반주제명
- Mathematics
- 일반주제명
- Theoretical mathematics
- 일반주제명
- Applied mathematics
- 키워드
- Rational points
- 기타저자
- Princeton University Mathematics
- 기본자료저록
- Dissertations Abstracts International. 86-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■006m o d
■007cr#unu||||||||
■020 ▼a9798280751156
■035 ▼a(MiAaPQ)AAI32038481
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a510
■1001 ▼aWoo, Katharine.
■24510▼aCounting Rational Points on Low-Degree del Pezzo Surfaces With Automorphic Forms
■260 ▼a[Sl]▼bPrinceton University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a211 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: B.
■500 ▼aAdvisor: Sarnak, Peter.
■5021 ▼aThesis (Ph.D.)--Princeton University, 2025.
■520 ▼aWe study Manin's conjecture for certain families of low-degree del Pezzo surfaces, i.e. asymptotics for the number of rational points of increasing height. In general, problems about rational points on del Pezzo surfaces are considered harder as the degree gets lower. In this thesis, we resolve Manin's conjecture for all Chatelet surfaces over Q, which are del Pezzo surfaces of degree four, and establish the first asymptotic count for a set of rational points on a del Pezzo surface of degree one.In Chapter 2, we prove the key analytic ingredient necessary in both arguments - a bound on the sums of the absolute values of the Hecke eigenvalues of cuspidal automorphic forms of GL2(AQ) along polynomial values. We use pieces of the Sato-Tate distribution to prove a logarithmic power savings over the trivial bound in the applicable cases; additionally we classify, when the polynomial is solvable, exactly when a logarithmic power savings occurs using analysis about the base change of the cuspidal representation.In Chapter 3, we study Manin's conjecture for Chatelet surfaces - the proper smooth models of the affine surfaces x2 +∆y2 = f(z), where f(z) is a squarefree polynomial of degree 3 or 4. Previous works handle the case of ∆ = 1 (and extend to any ∆ 0 such that Q( √ −∆) has class number one). We resolve the conjecture by viewing the point-count through an automorphic lens and connecting it to the sums of Chapter 2.In Chapter 4, we study rational points on the singular del Pezzo surface of degree one defined by y2 = x3 +AxQ(u, v)2 +BQ(u, v)3, where 4A3 −27B2 ≠ 0 and Q(u, v) is a positive-definite quadratic form. The main algebraic tool used is a parameterization of the integral points on quadratic twists of elliptic curves by binary quartic forms; this parameterization was first observed by Mordell and uses syzygys of binary quartic forms. We then reduce the problem to correlation sums of binary quadratic and binary quartic forms, which are analyzed using the central analytic ingredients of Chapters 2 and 3. As a result, we establish an asymptotic count for rational points that are integral with respect to the singularity on these del Pezzo surfaces.
■590 ▼aSchool code: 0181.
■650 4▼aMathematics
■650 4▼aTheoretical mathematics
■650 4▼aApplied mathematics
■653 ▼aAutomorphic forms
■653 ▼aBinary quadratic forms
■653 ▼aManin's conjecture
■653 ▼aRational points
■690 ▼a0405
■690 ▼a0642
■690 ▼a0364
■71020▼aPrinceton University▼bMathematics.
■7730 ▼tDissertations Abstracts International▼g86-12B.
■790 ▼a0181
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357481▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


