Random Holomorphic Sections and Complex Geometry

随机全纯截面和复杂几何

• 批准号: 0100474
• 负责人: Bernard Shiffman
• 金额: $ 34.94万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0100474&HistoricalAwards=false
• 关键词: Random; Holomorphic; Sections; Complex; Geometry

Abstract:Bernard Shiffman will continue his research on the statistics of randompolynomials in several complex variables and more generally of randomsections of powers of positive line bundles on compact complex manifolds andon almost complex symplectic manifolds. He will investigate the "scalinglimit" statistics as the degree of the polynomial or the power of the linebundle goes to infinity when distances are rescaled so that densities arenormalized. He will study spacing of zeros, hole probabilities, paircorrelations for local maxima, and other topics. He will also studycorrelations of critical points of spherical harmonics. In anotherdirection, he will study the compact singularities of equidimensionalmeromorphic mappings into compact complex manifolds. He will also look fornew examples of Kobayashi hyperbolic hypersurfaces in complex projective3-space. Kobayashi hyperbolic spaces do not carry any entire holomorphiccurves; simple examples are the Cartesian squares of curves of genus greaterthan 1 and symmetric squares of generic curves of genus greater than 2. Hewill look for low-degree hyperbolic birational images of these surfaces incomplex projective 3-space.This research project is motivated by a need to understand complex quantummechanical systems. Quantum mechanics is the fundamental theory thatdescribes the behavior of atoms and molecules and their componentparticles--protons, neutrons, and electrons. These particles are describedby wave functions, which are solutions of Schrodinger's equation. The zerosand local maxima of wave functions give important information on states ofatoms and molecules; the zeros are known in quantum chemistry and physics asnodal lines. The behavior of random polynomials provide an elementary modelsimilar to complex quantum systems. Polynomials in several variablescorrespond to systems with several degrees of freedom, and those polynomialsof high degree correspond to wave functions for highly excited states. Theproject includes statistics on symplectic manifolds, which serve as themathematical models for the states of quantum systems. Another component ofthe research involves understanding the geometry of complex algebraicmanifolds, which play an important role in quantum field theory and providemodels for diverse physical phenomena.

翻译后摘要：伯纳德Shiffman将继续他的研究在几个复杂的变量和随机多项式的统计更一般的随机截面的权力，积极的线丛紧凑复杂的流形andon几乎复杂的辛流形。 他将调查“scalinglimit”统计的程度的多项式或权力的linebundle去无穷大时，距离重新调整，使密度arenormalized。 他将研究零的间距，孔概率，局部极大值的对相关性，以及其他主题。他还将研究球谐函数临界点的相关性。 在另一个方向，他将研究等维亚纯映射到紧复流形的紧奇异性。 他还将寻找新的例子小林双曲超曲面在复杂的projective 3空间。 小林双曲空间不包含任何完整的全纯曲线;简单的例子是亏格大于1的曲线的笛卡尔平方和亏格大于2的曲线的对称平方。 他将在复射影三维空间中寻找这些曲面的低次双曲双有理像。 量子力学是描述原子、分子及其组成粒子--质子、中子和电子--行为的基本理论。 这些粒子由波函数描述，波函数是薛定谔方程的解。 波函数的零点和局部极大值给出了原子和分子状态的重要信息;零点在量子化学和物理学中被称为节线。 随机多项式的行为提供了一个类似于复杂量子系统的基本模型。 多元多项式对应于多自由度系统，而高次多项式对应于高激发态的波函数。 该项目包括辛流形的统计，作为量子系统状态的数学模型。 研究的另一个组成部分涉及理解复代数流形的几何，这在量子场论中起着重要作用，并为各种物理现象提供模型。